621912952 has 16 divisors (see below), whose sum is σ = 1166356440. Its totient is φ = 310884576.

The previous prime is 621912947. The next prime is 621913001. The reversal of 621912952 is 259219126.

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 3 ways as a sum of consecutive naturals, for example, 52578 + ... + 63310.

Almost surely, 2^621912952 is an apocalyptic number.

It is an amenable number.

621912952 is a deficient number, since it is larger than the sum of its proper divisors (544443488).

621912952 is a wasteful number, since it uses less digits than its factorization.

621912952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982 (or 17978 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 621912952 is about 24938.1826122113. The cubic root of 621912952 is about 853.5779752400.

The spelling of 621912952 in words is "six hundred twenty-one million, nine hundred twelve thousand, nine hundred fifty-two".