2904631 has 4 divisors (see below), whose sum is σ = 2922192. Its totient is φ = 2887072.

The previous prime is 2904623. The next prime is 2904641. The reversal of 2904631 is 1364092.

2904631 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.

It is a cyclic number.

It is not a de Polignac number, because 2904631 - 2³ = 2904623 is a prime.

It is a super-2 number, since 2×2904631² = 16873762492322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2904596 and 2904605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2904641) 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, 8530 + ... + 8863.

It is an arithmetic number, because the mean of its divisors is an integer number (730548).

2^2904631 is an apocalyptic number.

2904631 is a deficient number, since it is larger than the sum of its proper divisors (17561).

2904631 is a wasteful number, since it uses less digits than its factorization.

2904631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17560.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2904631 is about 1704.2978026155. The cubic root of 2904631 is about 142.6801824571.

The spelling of 2904631 in words is "two million, nine hundred four thousand, six hundred thirty-one".