97533913 has 8 divisors (see below), whose sum is σ = 104687208. Its totient is φ = 90537984.

The previous prime is 97533911. The next prime is 97533923. The reversal of 97533913 is 31933579.

It can be written as a sum of positive squares in 4 ways, for example, as 27175369 + 70358544 = 5213^2 + 8388^2 .

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 97533913 - 2¹ = 97533911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97533911) 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, 38056 + ... + 40537.

It is an arithmetic number, because the mean of its divisors is an integer number (13085901).

Almost surely, 2^97533913 is an apocalyptic number.

It is an amenable number.

97533913 is a deficient number, since it is larger than the sum of its proper divisors (7153295).

97533913 is a wasteful number, since it uses less digits than its factorization.

97533913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78683.

The product of its digits is 76545, while the sum is 40.

The square root of 97533913 is about 9875.9259312735. The cubic root of 97533913 is about 460.3115611416.

The spelling of 97533913 in words is "ninety-seven million, five hundred thirty-three thousand, nine hundred thirteen".