29105979 has 16 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 16601760.

The previous prime is 29105959. The next prime is 29105981. The reversal of 29105979 is 97950192.

It is not a de Polignac number, because 29105979 - 2¹³ = 29097787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29105979.

It is not an unprimeable number, because it can be changed into a prime (29105959) 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, 16177 + ... + 17885.

It is an arithmetic number, because the mean of its divisors is an integer number (2777040).

Almost surely, 2^29105979 is an apocalyptic number.

29105979 is a deficient number, since it is larger than the sum of its proper divisors (15326661).

29105979 is a wasteful number, since it uses less digits than its factorization.

29105979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 29105979 is about 5394.9957367916. The cubic root of 29105979 is about 307.6054816921.

The spelling of 29105979 in words is "twenty-nine million, one hundred five thousand, nine hundred seventy-nine".