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2897969 = 6834243
BaseRepresentation
bin1011000011100000110001
312110020021012
423003200301
51220213334
6142040305
733426614
oct13034061
95406235
102897969
1116aa318
12b79095
137a6099
1455617b
153c39ce
hex2c3831

2897969 has 4 divisors (see below), whose sum is σ = 2902896. Its totient is φ = 2893044.

The previous prime is 2897963. The next prime is 2897971. The reversal of 2897969 is 9697982.

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.

It is a cyclic number.

It is not a de Polignac number, because 2897969 - 216 = 2832433 is a prime.

It is a super-2 number, since 2×28979692 = 16796448649922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (725724).

22897969 is an apocalyptic number.

It is an amenable number.

2897969 is a deficient number, since it is larger than the sum of its proper divisors (4927).

2897969 is an equidigital number, since it uses as much as digits as its factorization.

2897969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its digits is 489888, while the sum is 50.

The square root of 2897969 is about 1702.3422100154. The cubic root of 2897969 is about 142.5710162082.

The spelling of 2897969 in words is "two million, eight hundred ninety-seven thousand, nine hundred sixty-nine".

Divisors: 1 683 4243 2897969