29972629 has 6 divisors (see below), whose sum is σ = 30971670. Its totient is φ = 29004840.

The previous prime is 29972623. The next prime is 29972639. The reversal of 29972629 is 92627992.

It can be written as a sum of positive squares in only one way, i.e., 19377604 + 10595025 = 4402^2 + 3255^2 .

It is not a de Polignac number, because 29972629 - 2⁵ = 29972597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29972623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14634 + ... + 16555.

It is an arithmetic number, because the mean of its divisors is an integer number (5161945).

Almost surely, 2^29972629 is an apocalyptic number.

It is an amenable number.

29972629 is a deficient number, since it is larger than the sum of its proper divisors (999041).

29972629 is an equidigital number, since it uses as much as digits as its factorization.

29972629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31251 (or 31220 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 29972629 is about 5474.7263858571. The cubic root of 29972629 is about 310.6287239964.

The spelling of 29972629 in words is "twenty-nine million, nine hundred seventy-two thousand, six hundred twenty-nine".