82973768 has 8 divisors (see below), whose sum is σ = 155575830. Its totient is φ = 41486880.

The previous prime is 82973747. The next prime is 82973777. The reversal of 82973768 is 86737928.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59567524 + 23406244 = 7718^2 + 4838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×82973768² = 13769292352235648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5185853 + ... + 5185868.

Almost surely, 2^82973768 is an apocalyptic number.

It is an amenable number.

82973768 is a deficient number, since it is larger than the sum of its proper divisors (72602062).

82973768 is a wasteful number, since it uses less digits than its factorization.

82973768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371727 (or 10371723 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 82973768 is about 9108.9937973412. The cubic root of 82973768 is about 436.1611081516.

The spelling of 82973768 in words is "eighty-two million, nine hundred seventy-three thousand, seven hundred sixty-eight".