628637934 has 32 divisors (see below), whose sum is σ = 1336468896. Its totient is φ = 196444160.

The previous prime is 628637923. The next prime is 628637957. The reversal of 628637934 is 439736826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14224 + ... + 38204.

It is an arithmetic number, because the mean of its divisors is an integer number (41764653).

Almost surely, 2^628637934 is an apocalyptic number.

628637934 is an abundant number, since it is smaller than the sum of its proper divisors (707830962).

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

628637934 is a wasteful number, since it uses less digits than its factorization.

628637934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24260.

The product of its digits is 1306368, while the sum is 48.

The square root of 628637934 is about 25072.6531105107. The cubic root of 628637934 is about 856.6436396750.

The spelling of 628637934 in words is "six hundred twenty-eight million, six hundred thirty-seven thousand, nine hundred thirty-four".