97768765 has 8 divisors (see below), whose sum is σ = 117390168. Its totient is φ = 78169920.

The previous prime is 97768757. The next prime is 97768777. The reversal of 97768765 is 56786779.

It can be written as a sum of positive squares in 4 ways, for example, as 47045881 + 50722884 = 6859^2 + 7122^2 .

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

It is not a de Polignac number, because 97768765 - 2³ = 97768757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6139 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (14673771).

Almost surely, 2^97768765 is an apocalyptic number.

It is an amenable number.

97768765 is a deficient number, since it is larger than the sum of its proper divisors (19621403).

97768765 is a wasteful number, since it uses less digits than its factorization.

97768765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279.

The product of its digits is 4445280, while the sum is 55.

The square root of 97768765 is about 9887.8089079432. The cubic root of 97768765 is about 460.6807265410.

The spelling of 97768765 in words is "ninety-seven million, seven hundred sixty-eight thousand, seven hundred sixty-five".