204708631 has 4 divisors (see below), whose sum is σ = 208571112. Its totient is φ = 200846152.

The previous prime is 204708629. The next prime is 204708659. The reversal of 204708631 is 136807402.

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 204708631 - 2¹ = 204708629 is a prime.

It is a super-2 number, since 2×204708631² = 83811247211788322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204708593 and 204708602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204708601) 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, 1931161 + ... + 1931266.

It is an arithmetic number, because the mean of its divisors is an integer number (52142778).

Almost surely, 2^204708631 is an apocalyptic number.

204708631 is a deficient number, since it is larger than the sum of its proper divisors (3862481).

204708631 is an equidigital number, since it uses as much as digits as its factorization.

204708631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862480.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 204708631 is about 14307.6423983828. The cubic root of 204708631 is about 589.3573688595.

The spelling of 204708631 in words is "two hundred four million, seven hundred eight thousand, six hundred thirty-one".