621917483 has 8 divisors (see below), whose sum is σ = 679114800. Its totient is φ = 564830080.

The previous prime is 621917449. The next prime is 621917501. The reversal of 621917483 is 384719126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 621917483 - 2⁸ = 621917227 is a prime.

It is a super-2 number, since 2×621917483² = 773562711322110578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 621917483.

It is not an unprimeable number, because it can be changed into a prime (621917183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15410 + ... + 38487.

It is an arithmetic number, because the mean of its divisors is an integer number (84889350).

Almost surely, 2^621917483 is an apocalyptic number.

621917483 is a deficient number, since it is larger than the sum of its proper divisors (57197317).

621917483 is a wasteful number, since it uses less digits than its factorization.

621917483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54957.

The product of its digits is 72576, while the sum is 41.

The square root of 621917483 is about 24938.2734566770. The cubic root of 621917483 is about 853.5800481734.

The spelling of 621917483 in words is "six hundred twenty-one million, nine hundred seventeen thousand, four hundred eighty-three".