628630794 has 96 divisors (see below), whose sum is σ = 1631762496. Its totient is φ = 179262720.

The previous prime is 628630771. The next prime is 628630817. The reversal of 628630794 is 497036826.

628630794 is a `hidden beast` number, since 6 + 2 + 8 + 630 + 7 + 9 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (628630771) and next prime (628630817).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87424 + ... + 94340.

It is an arithmetic number, because the mean of its divisors is an integer number (16997526).

Almost surely, 2^628630794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628630794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815881248).

628630794 is an abundant number, since it is smaller than the sum of its proper divisors (1003131702).

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

628630794 is a wasteful number, since it uses less digits than its factorization.

628630794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6962 (or 6950 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 628630794 is about 25072.5107238984. The cubic root of 628630794 is about 856.6403964416.

The spelling of 628630794 in words is "six hundred twenty-eight million, six hundred thirty thousand, seven hundred ninety-four".