82970665 has 8 divisors (see below), whose sum is σ = 99633600. Its totient is φ = 66330672.

The previous prime is 82970647. The next prime is 82970669. The reversal of 82970665 is 56607928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82970665 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82970669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3612 + ... + 13378.

It is an arithmetic number, because the mean of its divisors is an integer number (12454200).

Almost surely, 2^82970665 is an apocalyptic number.

It is an amenable number.

82970665 is a deficient number, since it is larger than the sum of its proper divisors (16662935).

82970665 is a wasteful number, since it uses less digits than its factorization.

82970665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11471.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 82970665 is about 9108.8234695816. The cubic root of 82970665 is about 436.1556709923.

The spelling of 82970665 in words is "eighty-two million, nine hundred seventy thousand, six hundred sixty-five".