82307564 has 12 divisors (see below), whose sum is σ = 144956784. Its totient is φ = 40891344.

The previous prime is 82307549. The next prime is 82307567. The reversal of 82307564 is 46570328.

It is a happy number.

It is a super-2 number, since 2×82307564² = 13549070183228192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82307567) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64904 + ... + 66159.

It is an arithmetic number, because the mean of its divisors is an integer number (12079732).

Almost surely, 2^82307564 is an apocalyptic number.

It is an amenable number.

82307564 is a deficient number, since it is larger than the sum of its proper divisors (62649220).

82307564 is a wasteful number, since it uses less digits than its factorization.

82307564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131224 (or 131222 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 82307564 is about 9072.3516245789. The cubic root of 82307564 is about 434.9906440935.

The spelling of 82307564 in words is "eighty-two million, three hundred seven thousand, five hundred sixty-four".