97992065 has 4 divisors (see below), whose sum is σ = 117590484. Its totient is φ = 78393648.

The previous prime is 97992007. The next prime is 97992067. The reversal of 97992065 is 56029979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47169424 + 50822641 = 6868^2 + 7129^2 .

It is a cyclic number.

It is not a de Polignac number, because 97992065 - 2⁶ = 97992001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97992067) 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, 9799202 + ... + 9799211.

It is an arithmetic number, because the mean of its divisors is an integer number (29397621).

Almost surely, 2^97992065 is an apocalyptic number.

It is an amenable number.

97992065 is a deficient number, since it is larger than the sum of its proper divisors (19598419).

97992065 is a wasteful number, since it uses less digits than its factorization.

97992065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19598418.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 97992065 is about 9899.0941504766. The cubic root of 97992065 is about 461.0311853965.

The spelling of 97992065 in words is "ninety-seven million, nine hundred ninety-two thousand, sixty-five".