628879472 has 40 divisors (see below), whose sum is σ = 1342716144. Its totient is φ = 283497984.

The previous prime is 628879469. The next prime is 628879477. The reversal of 628879472 is 274978826.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628879477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26213 + ... + 44100.

Almost surely, 2^628879472 is an apocalyptic number.

It is an amenable number.

628879472 is an abundant number, since it is smaller than the sum of its proper divisors (713836672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628879472 is a wasteful number, since it uses less digits than its factorization.

628879472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70377 (or 70371 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 628879472 is about 25077.4694098109. The cubic root of 628879472 is about 856.7533400742.

The spelling of 628879472 in words is "six hundred twenty-eight million, eight hundred seventy-nine thousand, four hundred seventy-two".