82407874 has 16 divisors (see below), whose sum is σ = 131074200. Its totient is φ = 38723584.

The previous prime is 82407863. The next prime is 82407893. The reversal of 82407874 is 47870428.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57836025 + 24571849 = 7605^2 + 4957^2 .

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 7 ways as a sum of consecutive naturals, for example, 30282 + ... + 32890.

Almost surely, 2^82407874 is an apocalyptic number.

82407874 is a deficient number, since it is larger than the sum of its proper divisors (48666326).

82407874 is a wasteful number, since it uses less digits than its factorization.

82407874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 82407874 is about 9077.8782763375. The cubic root of 82407874 is about 435.1672831755.

The spelling of 82407874 in words is "eighty-two million, four hundred seven thousand, eight hundred seventy-four".