624738961 has 16 divisors (see below), whose sum is σ = 779563008. Its totient is φ = 486392400.

The previous prime is 624738929. The next prime is 624738973. The reversal of 624738961 is 169837426.

It is a cyclic number.

It is not a de Polignac number, because 624738961 - 2⁵ = 624738929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (624738901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 111456 + ... + 116926.

It is an arithmetic number, because the mean of its divisors is an integer number (48722688).

Almost surely, 2^624738961 is an apocalyptic number.

It is an amenable number.

624738961 is a deficient number, since it is larger than the sum of its proper divisors (154824047).

624738961 is a wasteful number, since it uses less digits than its factorization.

624738961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972.

The product of its digits is 435456, while the sum is 46.

The square root of 624738961 is about 24994.7786747553. The cubic root of 624738961 is about 854.8689246531.

The spelling of 624738961 in words is "six hundred twenty-four million, seven hundred thirty-eight thousand, nine hundred sixty-one".