82161674 has 16 divisors (see below), whose sum is σ = 141485568. Its totient is φ = 35052912.

The previous prime is 82161671. The next prime is 82161701. The reversal of 82161674 is 47616128.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (82161671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10037 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (8842848).

Almost surely, 2^82161674 is an apocalyptic number.

82161674 is a deficient number, since it is larger than the sum of its proper divisors (59323894).

82161674 is a wasteful number, since it uses less digits than its factorization.

82161674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26549.

The product of its digits is 16128, while the sum is 35.

The square root of 82161674 is about 9064.3076955717. The cubic root of 82161674 is about 434.7334854005.

The spelling of 82161674 in words is "eighty-two million, one hundred sixty-one thousand, six hundred seventy-four".