97680365 has 4 divisors (see below), whose sum is σ = 117216444. Its totient is φ = 78144288.

The previous prime is 97680347. The next prime is 97680367. The reversal of 97680365 is 56308679.

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 73582084 + 24098281 = 8578^2 + 4909^2 .

It is a cyclic number.

It is not a de Polignac number, because 97680365 - 2²⁰ = 96631789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97680367) 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, 9768032 + ... + 9768041.

It is an arithmetic number, because the mean of its divisors is an integer number (29304111).

Almost surely, 2^97680365 is an apocalyptic number.

It is an amenable number.

97680365 is a deficient number, since it is larger than the sum of its proper divisors (19536079).

97680365 is a wasteful number, since it uses less digits than its factorization.

97680365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536078.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 97680365 is about 9883.3377459237. The cubic root of 97680365 is about 460.5418394561.

The spelling of 97680365 in words is "ninety-seven million, six hundred eighty thousand, three hundred sixty-five".