82905790 has 16 divisors (see below), whose sum is σ = 162797040. Its totient is φ = 30147520.

The previous prime is 82905773. The next prime is 82905817. The reversal of 82905790 is 9750928.

It is a congruent number.

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, 376735 + ... + 376954.

It is an arithmetic number, because the mean of its divisors is an integer number (10174815).

Almost surely, 2^82905790 is an apocalyptic number.

82905790 is a deficient number, since it is larger than the sum of its proper divisors (79891250).

82905790 is a wasteful number, since it uses less digits than its factorization.

82905790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753707.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 82905790 is about 9105.2616656524. The cubic root of 82905790 is about 436.0419642296.

The spelling of 82905790 in words is "eighty-two million, nine hundred five thousand, seven hundred ninety".