97744765 has 4 divisors (see below), whose sum is σ = 117293724. Its totient is φ = 78195808.

The previous prime is 97744741. The next prime is 97744793. The reversal of 97744765 is 56744779.

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 63393444 + 34351321 = 7962^2 + 5861^2 .

It is a cyclic number.

It is not a de Polignac number, because 97744765 - 2⁷ = 97744637 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9774472 + ... + 9774481.

It is an arithmetic number, because the mean of its divisors is an integer number (29323431).

Almost surely, 2^97744765 is an apocalyptic number.

It is an amenable number.

97744765 is a deficient number, since it is larger than the sum of its proper divisors (19548959).

97744765 is a wasteful number, since it uses less digits than its factorization.

97744765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19548958.

The product of its digits is 1481760, while the sum is 49.

The square root of 97744765 is about 9886.5952177683. The cubic root of 97744765 is about 460.6430279221.

The spelling of 97744765 in words is "ninety-seven million, seven hundred forty-four thousand, seven hundred sixty-five".