609904931 has 8 divisors (see below), whose sum is σ = 612627600. Its totient is φ = 607188960.

The previous prime is 609904913. The next prime is 609904949. The reversal of 609904931 is 139409906.

It is an interprime number because it is at equal distance from previous prime (609904913) and next prime (609904949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609904931 - 2¹⁰ = 609903907 is a prime.

It is a super-2 number, since 2×609904931² = 743968049716229522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609904831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267665 + ... + 269933.

It is an arithmetic number, because the mean of its divisors is an integer number (76578450).

Almost surely, 2^609904931 is an apocalyptic number.

609904931 is a deficient number, since it is larger than the sum of its proper divisors (2722669).

609904931 is a wasteful number, since it uses less digits than its factorization.

609904931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 609904931 is about 24696.2533798145. The cubic root of 609904931 is about 848.0485479170.

The spelling of 609904931 in words is "six hundred nine million, nine hundred four thousand, nine hundred thirty-one".