628898976 has 72 divisors (see below), whose sum is σ = 1791447840. Its totient is φ = 209279616.

The previous prime is 628898957. The next prime is 628898981. The reversal of 628898976 is 679898826.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212515 + ... + 215453.

It is an arithmetic number, because the mean of its divisors is an integer number (24881220).

Almost surely, 2^628898976 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 628898976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895723920).

628898976 is an abundant number, since it is smaller than the sum of its proper divisors (1162548864).

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

628898976 is a wasteful number, since it uses less digits than its factorization.

628898976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3687 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 628898976 is about 25077.8582817592. The cubic root of 628898976 is about 856.7621970678.

The spelling of 628898976 in words is "six hundred twenty-eight million, eight hundred ninety-eight thousand, nine hundred seventy-six".