97520765 has 8 divisors (see below), whose sum is σ = 121060440. Its totient is φ = 75326272.

The previous prime is 97520743. The next prime is 97520791. The reversal of 97520765 is 56702579.

It can be written as a sum of positive squares in 4 ways, for example, as 8916196 + 88604569 = 2986^2 + 9413^2 .

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 97520765 - 2¹⁸ = 97258621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336134 + ... + 336423.

It is an arithmetic number, because the mean of its divisors is an integer number (15132555).

Almost surely, 2^97520765 is an apocalyptic number.

It is an amenable number.

97520765 is a deficient number, since it is larger than the sum of its proper divisors (23539675).

97520765 is a wasteful number, since it uses less digits than its factorization.

97520765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672591.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 97520765 is about 9875.2602497352. The cubic root of 97520765 is about 460.2908762051.

The spelling of 97520765 in words is "ninety-seven million, five hundred twenty thousand, seven hundred sixty-five".