82789628 has 12 divisors (see below), whose sum is σ = 145056912. Its totient is φ = 41344800.

The previous prime is 82789613. The next prime is 82789633. The reversal of 82789628 is 82698728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8648 + ... + 15503.

It is an arithmetic number, because the mean of its divisors is an integer number (12088076).

Almost surely, 2^82789628 is an apocalyptic number.

It is an amenable number.

82789628 is a deficient number, since it is larger than the sum of its proper divisors (62267284).

82789628 is a wasteful number, since it uses less digits than its factorization.

82789628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25012 (or 25010 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 82789628 is about 9098.8805904902. The cubic root of 82789628 is about 435.8382181801.

The spelling of 82789628 in words is "eighty-two million, seven hundred eighty-nine thousand, six hundred twenty-eight".