82172662 has 32 divisors (see below), whose sum is σ = 153334944. Its totient is φ = 32448000.

The previous prime is 82172659. The next prime is 82172693. The reversal of 82172662 is 26627128.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 3589 + ... + 13312.

It is an arithmetic number, because the mean of its divisors is an integer number (4791717).

Almost surely, 2^82172662 is an apocalyptic number.

82172662 is a deficient number, since it is larger than the sum of its proper divisors (71162282).

82172662 is a wasteful number, since it uses less digits than its factorization.

82172662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16944.

The product of its digits is 16128, while the sum is 34.

The square root of 82172662 is about 9064.9137888896. The cubic root of 82172662 is about 434.7528644223.

The spelling of 82172662 in words is "eighty-two million, one hundred seventy-two thousand, six hundred sixty-two".