621425337 has 12 divisors (see below), whose sum is σ = 897206544. Its totient is φ = 382415280.

The previous prime is 621425317. The next prime is 621425341. The reversal of 621425337 is 733524126.

It is not a de Polignac number, because 621425337 - 2⁷ = 621425209 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 621425298 and 621425307.

It is not an unprimeable number, because it can be changed into a prime (621425317) 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 11 ways as a sum of consecutive naturals, for example, 612339 + ... + 613352.

It is an arithmetic number, because the mean of its divisors is an integer number (74767212).

Almost surely, 2^621425337 is an apocalyptic number.

It is an amenable number.

621425337 is a deficient number, since it is larger than the sum of its proper divisors (275781207).

621425337 is a wasteful number, since it uses less digits than its factorization.

621425337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225720 (or 1225707 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 621425337 is about 24928.4042208883. The cubic root of 621425337 is about 853.3548324085.

The spelling of 621425337 in words is "six hundred twenty-one million, four hundred twenty-five thousand, three hundred thirty-seven".