29307172 has 12 divisors (see below), whose sum is σ = 51409036. Its totient is φ = 14618880.

The previous prime is 29307143. The next prime is 29307181. The reversal of 29307172 is 27170392.

It can be written as a sum of positive squares in 2 ways, for example, as 11464996 + 17842176 = 3386^2 + 4224^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6729 + ... + 10192.

Almost surely, 2^29307172 is an apocalyptic number.

It is an amenable number.

29307172 is a deficient number, since it is larger than the sum of its proper divisors (22101864).

29307172 is a wasteful number, since it uses less digits than its factorization.

29307172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17358 (or 17356 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 29307172 is about 5413.6098862035. The cubic root of 29307172 is about 308.3126218050.

The spelling of 29307172 in words is "twenty-nine million, three hundred seven thousand, one hundred seventy-two".