29163939 has 16 divisors (see below), whose sum is σ = 45280512. Its totient is φ = 16350048.

The previous prime is 29163929. The next prime is 29163943. The reversal of 29163939 is 93936192.

It is a happy number.

It is not a de Polignac number, because 29163939 - 2¹² = 29159843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29163939.

It is not an unprimeable number, because it can be changed into a prime (29163929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11989 + ... + 14214.

It is an arithmetic number, because the mean of its divisors is an integer number (2830032).

Almost surely, 2^29163939 is an apocalyptic number.

29163939 is a deficient number, since it is larger than the sum of its proper divisors (16116573).

29163939 is a wasteful number, since it uses less digits than its factorization.

29163939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26266.

The product of its digits is 78732, while the sum is 42.

The square root of 29163939 is about 5400.3647099062. The cubic root of 29163939 is about 307.8095290273.

The spelling of 29163939 in words is "twenty-nine million, one hundred sixty-three thousand, nine hundred thirty-nine".