621461936 has 20 divisors (see below), whose sum is σ = 1204873032. Its totient is φ = 310526976.

The previous prime is 621461923. The next prime is 621461947. The reversal of 621461936 is 639164126.

It is a self number, because there is not a number n which added to its sum of digits gives 621461936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14096 + ... + 37968.

Almost surely, 2^621461936 is an apocalyptic number.

It is an amenable number.

621461936 is a deficient number, since it is larger than the sum of its proper divisors (583411096).

621461936 is a wasteful number, since it uses less digits than its factorization.

621461936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25508 (or 25502 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 621461936 is about 24929.1382923678. The cubic root of 621461936 is about 853.3715849281.

The spelling of 621461936 in words is "six hundred twenty-one million, four hundred sixty-one thousand, nine hundred thirty-six".