82969864 has 16 divisors (see below), whose sum is σ = 156019500. Its totient is φ = 41364672.

The previous prime is 82969849. The next prime is 82969867. The reversal of 82969864 is 46896928.

82969864 = T₉₅ + T₉₆ + ... + T₇₉₂.

It can be written as a sum of positive squares in 2 ways, for example, as 74960964 + 8008900 = 8658^2 + 2830^2 .

It is not an unprimeable number, because it can be changed into a prime (82969867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12067 + ... + 17650.

Almost surely, 2^82969864 is an apocalyptic number.

It is an amenable number.

82969864 is a deficient number, since it is larger than the sum of its proper divisors (73049636).

82969864 is a wasteful number, since it uses less digits than its factorization.

82969864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30072 (or 30068 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 82969864 is about 9108.7795011187. The cubic root of 82969864 is about 436.1542674367.

The spelling of 82969864 in words is "eighty-two million, nine hundred sixty-nine thousand, eight hundred sixty-four".