82179394 has 16 divisors (see below), whose sum is σ = 142386336. Its totient is φ = 35156800.

The previous prime is 82179373. The next prime is 82179401. The reversal of 82179394 is 49397128.

It is a self number, because there is not a number n which added to its sum of digits gives 82179394.

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, 109492 + ... + 110239.

It is an arithmetic number, because the mean of its divisors is an integer number (8899146).

Almost surely, 2^82179394 is an apocalyptic number.

82179394 is a deficient number, since it is larger than the sum of its proper divisors (60206942).

82179394 is a wasteful number, since it uses less digits than its factorization.

82179394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219761.

The product of its digits is 108864, while the sum is 43.

The square root of 82179394 is about 9065.2851030732. The cubic root of 82179394 is about 434.7647364825.

The spelling of 82179394 in words is "eighty-two million, one hundred seventy-nine thousand, three hundred ninety-four".