97944065 has 4 divisors (see below), whose sum is σ = 117532884. Its totient is φ = 78355248.

The previous prime is 97944059. The next prime is 97944073. The reversal of 97944065 is 56044979.

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 72046144 + 25897921 = 8488^2 + 5089^2 .

It is a cyclic number.

It is not a de Polignac number, because 97944065 - 2²⁴ = 81166849 is a prime.

It is a Duffinian number.

It is a Curzon 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, 9794402 + ... + 9794411.

It is an arithmetic number, because the mean of its divisors is an integer number (29383221).

Almost surely, 2^97944065 is an apocalyptic number.

It is an amenable number.

97944065 is a deficient number, since it is larger than the sum of its proper divisors (19588819).

97944065 is a wasteful number, since it uses less digits than its factorization.

97944065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19588818.

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

The square root of 97944065 is about 9896.6693892440. The cubic root of 97944065 is about 460.9558966094.

The spelling of 97944065 in words is "ninety-seven million, nine hundred forty-four thousand, sixty-five".