82315905 has 32 divisors (see below), whose sum is σ = 154199808. Its totient is φ = 36710400.

The previous prime is 82315897. The next prime is 82315913. The reversal of 82315905 is 50951328.

It is an interprime number because it is at equal distance from previous prime (82315897) and next prime (82315913).

It is not a de Polignac number, because 82315905 - 2³ = 82315897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5256 + ... + 13865.

It is an arithmetic number, because the mean of its divisors is an integer number (4818744).

Almost surely, 2^82315905 is an apocalyptic number.

It is an amenable number.

82315905 is a deficient number, since it is larger than the sum of its proper divisors (71883903).

82315905 is a wasteful number, since it uses less digits than its factorization.

82315905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19177.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 82315905 is about 9072.8113063151. The cubic root of 82315905 is about 435.0053374956.

The spelling of 82315905 in words is "eighty-two million, three hundred fifteen thousand, nine hundred five".