29997912 has 32 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 8570784.

The previous prime is 29997907. The next prime is 29997917. The reversal of 29997912 is 21979992.

It is an interprime number because it is at equal distance from previous prime (29997907) and next prime (29997917).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29997917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89112 + ... + 89447.

It is an arithmetic number, because the mean of its divisors is an integer number (2678400).

Almost surely, 2^29997912 is an apocalyptic number.

It is an amenable number.

29997912 is an abundant number, since it is smaller than the sum of its proper divisors (55710888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29997912 is a wasteful number, since it uses less digits than its factorization.

29997912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178575 (or 178571 counting only the distinct ones).

The product of its digits is 183708, while the sum is 48.

The square root of 29997912 is about 5477.0349642850. The cubic root of 29997912 is about 310.7160416487.

The spelling of 29997912 in words is "twenty-nine million, nine hundred ninety-seven thousand, nine hundred twelve".