82605790 has 16 divisors (see below), whose sum is σ = 151854912. Its totient is φ = 32339104.

The previous prime is 82605769. The next prime is 82605791. The reversal of 82605790 is 9750628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82605791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87409 + ... + 88348.

It is an arithmetic number, because the mean of its divisors is an integer number (9490932).

Almost surely, 2^82605790 is an apocalyptic number.

82605790 is a deficient number, since it is larger than the sum of its proper divisors (69249122).

82605790 is a wasteful number, since it uses less digits than its factorization.

82605790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175811.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 82605790 is about 9088.7727444359. The cubic root of 82605790 is about 435.5153798102.

The spelling of 82605790 in words is "eighty-two million, six hundred five thousand, seven hundred ninety".