621607472 has 40 divisors (see below), whose sum is σ = 1220683776. Its totient is φ = 306616896.

The previous prime is 621607451. The next prime is 621607487. The reversal of 621607472 is 274706126.

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 7 ways as a sum of consecutive naturals, for example, 571313 + ... + 572399.

Almost surely, 2^621607472 is an apocalyptic number.

It is an amenable number.

621607472 is a deficient number, since it is larger than the sum of its proper divisors (599076304).

621607472 is a wasteful number, since it uses less digits than its factorization.

621607472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 621607472 is about 24932.0571152883. The cubic root of 621607472 is about 853.4381948502.

The spelling of 621607472 in words is "six hundred twenty-one million, six hundred seven thousand, four hundred seventy-two".