628894608 has 80 divisors (see below), whose sum is σ = 1694088000. Its totient is φ = 200858112.

The previous prime is 628894603. The next prime is 628894633. The reversal of 628894608 is 806498826.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (628894601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106518 + ... + 112266.

It is an arithmetic number, because the mean of its divisors is an integer number (21176100).

Almost surely, 2^628894608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628894608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847044000).

628894608 is an abundant number, since it is smaller than the sum of its proper divisors (1065193392).

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

628894608 is a wasteful number, since it uses less digits than its factorization.

628894608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856 (or 5850 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 628894608 is about 25077.7711928313. The cubic root of 628894608 is about 856.7602135241.

The spelling of 628894608 in words is "six hundred twenty-eight million, eight hundred ninety-four thousand, six hundred eight".