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4004797 = 31129187
BaseRepresentation
bin1111010001101110111101
321112110112211
433101232331
52011123142
6221500421
746016536
oct17215675
97473484
104004797
112295955
121411711
13aa2b04
1476368d
15541917
hex3d1bbd

4004797 has 4 divisors (see below), whose sum is σ = 4134016. Its totient is φ = 3875580.

The previous prime is 4004789. The next prime is 4004807. The reversal of 4004797 is 7974004.

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 4004797 - 23 = 4004789 is a prime.

It is a super-2 number, since 2×40047972 = 32076798022418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 129187 = 4004797 / (4 + 0 + 0 + 4 + 7 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004717) 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, 64563 + ... + 64624.

It is an arithmetic number, because the mean of its divisors is an integer number (1033504).

Almost surely, 24004797 is an apocalyptic number.

It is an amenable number.

4004797 is a deficient number, since it is larger than the sum of its proper divisors (129219).

4004797 is a wasteful number, since it uses less digits than its factorization.

4004797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129218.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 4004797 is about 2001.1988906653. The cubic root of 4004797 is about 158.8035362041.

The spelling of 4004797 in words is "four million, four thousand, seven hundred ninety-seven".

Divisors: 1 31 129187 4004797