29900631 has 12 divisors (see below), whose sum is σ = 40403832. Its totient is φ = 19669104.

The previous prime is 29900627. The next prime is 29900641. The reversal of 29900631 is 13600992.

It is not a de Polignac number, because 29900631 - 2² = 29900627 is a prime.

It is a super-2 number, since 2×29900631² = 1788095468396322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29900641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17925 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (3366986).

Almost surely, 2^29900631 is an apocalyptic number.

29900631 is a deficient number, since it is larger than the sum of its proper divisors (10503201).

29900631 is an equidigital number, since it uses as much as digits as its factorization.

29900631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 29900631 is about 5468.1469438924. The cubic root of 29900631 is about 310.3798015728.

The spelling of 29900631 in words is "twenty-nine million, nine hundred thousand, six hundred thirty-one".