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2864897 = 7409271
BaseRepresentation
bin1010111011011100000001
312101112220022
422323130001
51213134042
6141223225
733231320
oct12733401
95345808
102864897
111687492
12b61b15
13794009
145480b7
153b8cd2
hex2bb701

2864897 has 4 divisors (see below), whose sum is σ = 3274176. Its totient is φ = 2455620.

The previous prime is 2864887. The next prime is 2864909. The reversal of 2864897 is 7984682.

2864897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7984682 = 23992341.

It is a cyclic number.

It is not a de Polignac number, because 2864897 - 26 = 2864833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204629 + ... + 204642.

It is an arithmetic number, because the mean of its divisors is an integer number (818544).

22864897 is an apocalyptic number.

It is an amenable number.

2864897 is a deficient number, since it is larger than the sum of its proper divisors (409279).

2864897 is an equidigital number, since it uses as much as digits as its factorization.

2864897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409278.

The product of its digits is 193536, while the sum is 44.

The square root of 2864897 is about 1692.6006617038. The cubic root of 2864897 is about 142.0265935778.

The spelling of 2864897 in words is "two million, eight hundred sixty-four thousand, eight hundred ninety-seven".

Divisors: 1 7 409271 2864897