29976939 has 32 divisors (see below), whose sum is σ = 45891840. Its totient is φ = 19331136.

The previous prime is 29976937. The next prime is 29976971. The reversal of 29976939 is 93967992.

It is not a de Polignac number, because 29976939 - 2¹ = 29976937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29976931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131944 + ... + 132170.

It is an arithmetic number, because the mean of its divisors is an integer number (1434120).

Almost surely, 2^29976939 is an apocalyptic number.

29976939 is a deficient number, since it is larger than the sum of its proper divisors (15914901).

29976939 is a wasteful number, since it uses less digits than its factorization.

29976939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 370 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 29976939 is about 5475.1199986850. The cubic root of 29976939 is about 310.6436125317.

The spelling of 29976939 in words is "twenty-nine million, nine hundred seventy-six thousand, nine hundred thirty-nine".