621929126 has 48 divisors (see below), whose sum is σ = 1168763904. Its totient is φ = 242996832.

The previous prime is 621929117. The next prime is 621929153.

621929126 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 621929126.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 194795 + ... + 197961.

It is an arithmetic number, because the mean of its divisors is an integer number (24349248).

Almost surely, 2^621929126 is an apocalyptic number.

621929126 is a deficient number, since it is larger than the sum of its proper divisors (546834778).

621929126 is a wasteful number, since it uses less digits than its factorization.

621929126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285 (or 3272 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 621929126 is about 24938.5068919533. The cubic root of 621929126 is about 853.5853748021.

The spelling of 621929126 in words is "six hundred twenty-one million, nine hundred twenty-nine thousand, one hundred twenty-six".