82904508 has 36 divisors (see below), whose sum is σ = 213523128. Its totient is φ = 27112800.

The previous prime is 82904491. The next prime is 82904513. The reversal of 82904508 is 80540928.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19818 + ... + 23633.

It is an arithmetic number, because the mean of its divisors is an integer number (5931198).

Almost surely, 2^82904508 is an apocalyptic number.

It is an amenable number.

82904508 is an abundant number, since it is smaller than the sum of its proper divisors (130618620).

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

82904508 is a wasteful number, since it uses less digits than its factorization.

82904508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43514 (or 43509 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 82904508 is about 9105.1912665248. The cubic root of 82904508 is about 436.0397166637.

The spelling of 82904508 in words is "eighty-two million, nine hundred four thousand, five hundred eight".