620685122 has 24 divisors (see below), whose sum is σ = 992397360. Its totient is φ = 290343960.

The previous prime is 620685089. The next prime is 620685161. The reversal of 620685122 is 221586026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260597 + ... + 262967.

It is an arithmetic number, because the mean of its divisors is an integer number (41349890).

Almost surely, 2^620685122 is an apocalyptic number.

620685122 is a deficient number, since it is larger than the sum of its proper divisors (371712238).

620685122 is a wasteful number, since it uses less digits than its factorization.

620685122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 620685122 is about 24913.5529782486. The cubic root of 620685122 is about 853.0158713244.

The spelling of 620685122 in words is "six hundred twenty million, six hundred eighty-five thousand, one hundred twenty-two".