82731995 has 8 divisors (see below), whose sum is σ = 100638816. Its totient is φ = 65278656.

The previous prime is 82731977. The next prime is 82732003. The reversal of 82731995 is 59913728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82731995 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 112967 + ... + 113696.

It is an arithmetic number, because the mean of its divisors is an integer number (12579852).

Almost surely, 2^82731995 is an apocalyptic number.

82731995 is a deficient number, since it is larger than the sum of its proper divisors (17906821).

82731995 is a wasteful number, since it uses less digits than its factorization.

82731995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226741.

The product of its digits is 136080, while the sum is 44.

The square root of 82731995 is about 9095.7130011891. The cubic root of 82731995 is about 435.7370601986.

The spelling of 82731995 in words is "eighty-two million, seven hundred thirty-one thousand, nine hundred ninety-five".