621037968 has 20 divisors (see below), whose sum is σ = 1604348208. Its totient is φ = 207012640.

The previous prime is 621037957. The next prime is 621037979. The reversal of 621037968 is 869730126.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (621037957) and next prime (621037979).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6469098 + ... + 6469193.

Almost surely, 2^621037968 is an apocalyptic number.

It is an amenable number.

621037968 is an abundant number, since it is smaller than the sum of its proper divisors (983310240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621037968 is a wasteful number, since it uses less digits than its factorization.

621037968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12938302 (or 12938296 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 621037968 is about 24920.6333787888. The cubic root of 621037968 is about 853.1774810313.

The spelling of 621037968 in words is "six hundred twenty-one million, thirty-seven thousand, nine hundred sixty-eight".