82175764 has 12 divisors (see below), whose sum is σ = 156881088. Its totient is φ = 37352600.

The previous prime is 82175759. The next prime is 82175771. The reversal of 82175764 is 46757128.

82175764 = 1562² + 1563² + ... + 1594².

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, 933772 + ... + 933859.

It is an arithmetic number, because the mean of its divisors is an integer number (13073424).

Almost surely, 2^82175764 is an apocalyptic number.

It is an amenable number.

82175764 is a deficient number, since it is larger than the sum of its proper divisors (74705324).

82175764 is a wasteful number, since it uses less digits than its factorization.

82175764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867646 (or 1867644 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 82175764 is about 9065.0848865303. The cubic root of 82175764 is about 434.7583349619.

The spelling of 82175764 in words is "eighty-two million, one hundred seventy-five thousand, seven hundred sixty-four".