29979125 has 16 divisors (see below), whose sum is σ = 40817088. Its totient is φ = 21802000.

The previous prime is 29979119. The next prime is 29979133. The reversal of 29979125 is 52197992.

It is a happy number.

It is not a de Polignac number, because 29979125 - 2¹⁰ = 29978101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9527 + ... + 12276.

It is an arithmetic number, because the mean of its divisors is an integer number (2551068).

Almost surely, 2^29979125 is an apocalyptic number.

29979125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29979125 is a deficient number, since it is larger than the sum of its proper divisors (10837963).

29979125 is a wasteful number, since it uses less digits than its factorization.

29979125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21829 (or 21819 counting only the distinct ones).

The product of its digits is 102060, while the sum is 44.

The square root of 29979125 is about 5475.3196253735. The cubic root of 29979125 is about 310.6511633408.

The spelling of 29979125 in words is "twenty-nine million, nine hundred seventy-nine thousand, one hundred twenty-five".