620820974 has 8 divisors (see below), whose sum is σ = 931819368. Its totient is φ = 310214520.

The previous prime is 620820931. The next prime is 620820989. The reversal of 620820974 is 479028026.

620820974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 93992 + ... + 100379.

It is an arithmetic number, because the mean of its divisors is an integer number (116477421).

Almost surely, 2^620820974 is an apocalyptic number.

620820974 is a deficient number, since it is larger than the sum of its proper divisors (310998394).

620820974 is a wasteful number, since it uses less digits than its factorization.

620820974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195970.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 620820974 is about 24916.2792968774. The cubic root of 620820974 is about 853.0781011918.

The spelling of 620820974 in words is "six hundred twenty million, eight hundred twenty thousand, nine hundred seventy-four".