97606521 has 6 divisors (see below), whose sum is σ = 140987210. Its totient is φ = 65071008.

The previous prime is 97606511. The next prime is 97606543. The reversal of 97606521 is 12560679.

It can be written as a sum of positive squares in only one way, i.e., 97298496 + 308025 = 9864^2 + 555^2 .

It is not a de Polignac number, because 97606521 - 2⁷ = 97606393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97606511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5422576 + ... + 5422593.

Almost surely, 2^97606521 is an apocalyptic number.

It is an amenable number.

97606521 is a deficient number, since it is larger than the sum of its proper divisors (43380689).

97606521 is a wasteful number, since it uses less digits than its factorization.

97606521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10845175 (or 10845172 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 97606521 is about 9879.6012571358. The cubic root of 97606521 is about 460.4257573585.

The spelling of 97606521 in words is "ninety-seven million, six hundred six thousand, five hundred twenty-one".