82320964 has 24 divisors (see below), whose sum is σ = 159739776. Its totient is φ = 36804000.

The previous prime is 82320949. The next prime is 82320991. The reversal of 82320964 is 46902328.

It is a super-2 number, since 2×82320964² = 13553482227778592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12652 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (6655824).

Almost surely, 2^82320964 is an apocalyptic number.

It is an amenable number.

82320964 is a deficient number, since it is larger than the sum of its proper divisors (77418812).

82320964 is a wasteful number, since it uses less digits than its factorization.

82320964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30747 (or 30745 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 82320964 is about 9073.0901020545. The cubic root of 82320964 is about 435.0142488837.

The spelling of 82320964 in words is "eighty-two million, three hundred twenty thousand, nine hundred sixty-four".