628823982 has 64 divisors (see below), whose sum is σ = 1360722240. Its totient is φ = 193019904.

The previous prime is 628823953. The next prime is 628823983. The reversal of 628823982 is 289328826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628823983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025508 + ... + 1026120.

It is an arithmetic number, because the mean of its divisors is an integer number (21261285).

Almost surely, 2^628823982 is an apocalyptic number.

628823982 is an abundant number, since it is smaller than the sum of its proper divisors (731898258).

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

628823982 is a wasteful number, since it uses less digits than its factorization.

628823982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its digits is 663552, while the sum is 48.

The square root of 628823982 is about 25076.3630138025. The cubic root of 628823982 is about 856.7281404171.

The spelling of 628823982 in words is "six hundred twenty-eight million, eight hundred twenty-three thousand, nine hundred eighty-two".