29797972 has 24 divisors (see below), whose sum is σ = 54786816. Its totient is φ = 14153568.

The previous prime is 29797927. The next prime is 29797973. The reversal of 29797972 is 27979792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29797973) 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, 13413 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (2282784).

Almost surely, 2^29797972 is an apocalyptic number.

It is an amenable number.

29797972 is a deficient number, since it is larger than the sum of its proper divisors (24988844).

29797972 is a wasteful number, since it uses less digits than its factorization.

29797972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 52.

The square root of 29797972 is about 5458.7518719942. The cubic root of 29797972 is about 310.0241812563.

The spelling of 29797972 in words is "twenty-nine million, seven hundred ninety-seven thousand, nine hundred seventy-two".