82748620 has 24 divisors (see below), whose sum is σ = 173991888. Its totient is φ = 33057600.

The previous prime is 82748609. The next prime is 82748647. The reversal of 82748620 is 2684728.

It is a super-2 number, since 2×82748620² = 13694668223808800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82748620.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17290 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (7249662).

Almost surely, 2^82748620 is an apocalyptic number.

It is an amenable number.

82748620 is an abundant number, since it is smaller than the sum of its proper divisors (91243268).

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

82748620 is a wasteful number, since it uses less digits than its factorization.

82748620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241 (or 5239 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 82748620 is about 9096.6268473539. The cubic root of 82748620 is about 435.7662453744.

The spelling of 82748620 in words is "eighty-two million, seven hundred forty-eight thousand, six hundred twenty".