97765679 has 8 divisors (see below), whose sum is σ = 107598672. Its totient is φ = 88090240.

The previous prime is 97765669. The next prime is 97765711. The reversal of 97765679 is 97656779.

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

It is a cyclic number.

It is not a de Polignac number, because 97765679 - 2¹² = 97761583 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 (97765609) 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, 38084 + ... + 40569.

It is an arithmetic number, because the mean of its divisors is an integer number (13449834).

Almost surely, 2^97765679 is an apocalyptic number.

97765679 is a deficient number, since it is larger than the sum of its proper divisors (9832993).

97765679 is a wasteful number, since it uses less digits than its factorization.

97765679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78777.

The product of its digits is 5000940, while the sum is 56.

The square root of 97765679 is about 9887.6528559613. The cubic root of 97765679 is about 460.6758794726.

Subtracting from 97765679 its reverse (97656779), we obtain a square (108900 = 330²).

The spelling of 97765679 in words is "ninety-seven million, seven hundred sixty-five thousand, six hundred seventy-nine".