628064976 has 160 divisors (see below), whose sum is σ = 2042726400. Its totient is φ = 161533440.

The previous prime is 628064953. The next prime is 628064981. The reversal of 628064976 is 679460826.

It is a super-2 number, since 2×628064976² = 788931228155761152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402085 + ... + 403643.

It is an arithmetic number, because the mean of its divisors is an integer number (12767040).

Almost surely, 2^628064976 is an apocalyptic number.

628064976 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628064976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021363200).

628064976 is an abundant number, since it is smaller than the sum of its proper divisors (1414661424).

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

628064976 is a wasteful number, since it uses less digits than its factorization.

628064976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 628064976 is about 25061.2245510869. The cubic root of 628064976 is about 856.3833043313.

The spelling of 628064976 in words is "six hundred twenty-eight million, sixty-four thousand, nine hundred seventy-six".