82163604 has 12 divisors (see below), whose sum is σ = 191715104. Its totient is φ = 27387864.

The previous prime is 82163591. The next prime is 82163639. The reversal of 82163604 is 40636128.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423472 + ... + 3423495.

Almost surely, 2^82163604 is an apocalyptic number.

It is an amenable number.

82163604 is an abundant number, since it is smaller than the sum of its proper divisors (109551500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82163604 is a wasteful number, since it uses less digits than its factorization.

82163604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846974 (or 6846972 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 82163604 is about 9064.4141564692. The cubic root of 82163604 is about 434.7368893763.

It can be divided in two parts, 8 and 2163604, that added together give a palindrome (2163612).

The spelling of 82163604 in words is "eighty-two million, one hundred sixty-three thousand, six hundred four".