628894888 has 16 divisors (see below), whose sum is σ = 1230446880. Its totient is φ = 300775728.

The previous prime is 628894843. The next prime is 628894919. The reversal of 628894888 is 888498826.

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, 1708770 + ... + 1709137.

It is an arithmetic number, because the mean of its divisors is an integer number (76902930).

Almost surely, 2^628894888 is an apocalyptic number.

It is an amenable number.

628894888 is a deficient number, since it is larger than the sum of its proper divisors (601551992).

628894888 is a wasteful number, since it uses less digits than its factorization.

628894888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417936 (or 3417932 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 61.

The square root of 628894888 is about 25077.7767754640. The cubic root of 628894888 is about 856.7603406746.

The spelling of 628894888 in words is "six hundred twenty-eight million, eight hundred ninety-four thousand, eight hundred eighty-eight".