621710474 has 32 divisors (see below), whose sum is σ = 1164433536. Its totient is φ = 241859520.

The previous prime is 621710473. The next prime is 621710513. The reversal of 621710474 is 474017126.

It is a self number, because there is not a number n which added to its sum of digits gives 621710474.

It is not an unprimeable number, because it can be changed into a prime (621710473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113912 + ... + 119244.

It is an arithmetic number, because the mean of its divisors is an integer number (36388548).

Almost surely, 2^621710474 is an apocalyptic number.

621710474 is a deficient number, since it is larger than the sum of its proper divisors (542723062).

621710474 is a wasteful number, since it uses less digits than its factorization.

621710474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 621710474 is about 24934.1226835836. The cubic root of 621710474 is about 853.4853312344.

The spelling of 621710474 in words is "six hundred twenty-one million, seven hundred ten thousand, four hundred seventy-four".