97680515 has 4 divisors (see below), whose sum is σ = 117216624. Its totient is φ = 78144408.

The previous prime is 97680469. The next prime is 97680529. The reversal of 97680515 is 51508679.

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

It is a cyclic number.

It is not a de Polignac number, because 97680515 - 2²⁰ = 96631939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9768047 + ... + 9768056.

It is an arithmetic number, because the mean of its divisors is an integer number (29304156).

Almost surely, 2^97680515 is an apocalyptic number.

97680515 is a deficient number, since it is larger than the sum of its proper divisors (19536109).

97680515 is a wasteful number, since it uses less digits than its factorization.

97680515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536108.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 97680515 is about 9883.3453344503. The cubic root of 97680515 is about 460.5420751952.

The spelling of 97680515 in words is "ninety-seven million, six hundred eighty thousand, five hundred fifteen".