29974931 has 4 divisors (see below), whose sum is σ = 34257072. Its totient is φ = 25692792.

The previous prime is 29974909. The next prime is 29974943. The reversal of 29974931 is 13947992.

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 29974931 - 2²² = 25780627 is a prime.

It is a super-2 number, since 2×29974931² = 1796992976909522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29974981) 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, 2141060 + ... + 2141073.

It is an arithmetic number, because the mean of its divisors is an integer number (8564268).

Almost surely, 2^29974931 is an apocalyptic number.

29974931 is a deficient number, since it is larger than the sum of its proper divisors (4282141).

29974931 is an equidigital number, since it uses as much as digits as its factorization.

29974931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282140.

The product of its digits is 122472, while the sum is 44.

The square root of 29974931 is about 5474.9366206377. The cubic root of 29974931 is about 310.6366762409.

The spelling of 29974931 in words is "twenty-nine million, nine hundred seventy-four thousand, nine hundred thirty-one".