82804780 has 24 divisors (see below), whose sum is σ = 174082608. Its totient is φ = 33085248.

The previous prime is 82804769. The next prime is 82804781. The reversal of 82804780 is 8740828.

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 not an unprimeable number, because it can be changed into a prime (82804781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23067 + ... + 26413.

It is an arithmetic number, because the mean of its divisors is an integer number (7253442).

Almost surely, 2^82804780 is an apocalyptic number.

It is an amenable number.

82804780 is an abundant number, since it is smaller than the sum of its proper divisors (91277828).

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

82804780 is a wasteful number, since it uses less digits than its factorization.

82804780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593 (or 4591 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 82804780 is about 9099.7131822932. The cubic root of 82804780 is about 435.8648053183.

The spelling of 82804780 in words is "eighty-two million, eight hundred four thousand, seven hundred eighty".