129797624 has 32 divisors (see below), whose sum is σ = 266284800. Its totient is φ = 58823520.

The previous prime is 129797623. The next prime is 129797639. The reversal of 129797624 is 426797921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129797623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30287 + ... + 34305.

It is an arithmetic number, because the mean of its divisors is an integer number (8321400).

Almost surely, 2^129797624 is an apocalyptic number.

It is an amenable number.

129797624 is an abundant number, since it is smaller than the sum of its proper divisors (136487176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129797624 is a wasteful number, since it uses less digits than its factorization.

129797624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403 (or 4399 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 129797624 is about 11392.8760196888. The cubic root of 129797624 is about 506.3166946831.

The spelling of 129797624 in words is "one hundred twenty-nine million, seven hundred ninety-seven thousand, six hundred twenty-four".