621899325 has 36 divisors (see below), whose sum is σ = 1139812960. Its totient is φ = 323961120.

The previous prime is 621899263. The next prime is 621899363. The reversal of 621899325 is 523998126.

621899325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621899325 - 2⁶ = 621899261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22465 + ... + 41814.

Almost surely, 2^621899325 is an apocalyptic number.

It is an amenable number.

621899325 is a deficient number, since it is larger than the sum of its proper divisors (517913635).

621899325 is a wasteful number, since it uses less digits than its factorization.

621899325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64338 (or 64330 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 621899325 is about 24937.9093951358. The cubic root of 621899325 is about 853.5717408241.

The spelling of 621899325 in words is "six hundred twenty-one million, eight hundred ninety-nine thousand, three hundred twenty-five".