82584081 has 6 divisors (see below), whose sum is σ = 119288130. Its totient is φ = 55056048.

The previous prime is 82584077. The next prime is 82584137. The reversal of 82584081 is 18048528.

It can be written as a sum of positive squares in only one way, i.e., 82519056 + 65025 = 9084^2 + 255^2 .

It is not a de Polignac number, because 82584081 - 2² = 82584077 is a prime.

It is a super-2 number, since 2×82584081² = 13640260869229122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82584071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4587996 + ... + 4588013.

It is an arithmetic number, because the mean of its divisors is an integer number (19881355).

Almost surely, 2^82584081 is an apocalyptic number.

It is an amenable number.

82584081 is a deficient number, since it is larger than the sum of its proper divisors (36704049).

82584081 is a wasteful number, since it uses less digits than its factorization.

82584081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176015 (or 9176012 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 82584081 is about 9087.5783903084. The cubic root of 82584081 is about 435.4772249717.

The spelling of 82584081 in words is "eighty-two million, five hundred eighty-four thousand, eighty-one".