82725764 has 18 divisors (see below), whose sum is σ = 159128382. Its totient is φ = 37602400.

The previous prime is 82725761. The next prime is 82725793. The reversal of 82725764 is 46752728.

It can be written as a sum of positive squares in only one way, i.e., 73239364 + 9486400 = 8558^2 + 3080^2 .

It is not an unprimeable number, because it can be changed into a prime (82725761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84977 + ... + 85944.

Almost surely, 2^82725764 is an apocalyptic number.

It is an amenable number.

82725764 is a deficient number, since it is larger than the sum of its proper divisors (76402618).

82725764 is a wasteful number, since it uses less digits than its factorization.

82725764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170947 (or 170934 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 82725764 is about 9095.3704707395. The cubic root of 82725764 is about 435.7261206752.

The spelling of 82725764 in words is "eighty-two million, seven hundred twenty-five thousand, seven hundred sixty-four".