620474686 has 8 divisors (see below), whose sum is σ = 1002305304. Its totient is φ = 286372920.

The previous prime is 620474671. The next prime is 620474693. The reversal of 620474686 is 686474026.

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, 11932180 + ... + 11932231.

It is an arithmetic number, because the mean of its divisors is an integer number (125288163).

Almost surely, 2^620474686 is an apocalyptic number.

620474686 is a deficient number, since it is larger than the sum of its proper divisors (381830618).

620474686 is a wasteful number, since it uses less digits than its factorization.

620474686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23864426.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 620474686 is about 24909.3292964704. The cubic root of 620474686 is about 852.9194587572.

The spelling of 620474686 in words is "six hundred twenty million, four hundred seventy-four thousand, six hundred eighty-six".