97522217 has 16 divisors (see below), whose sum is σ = 112048272. Its totient is φ = 84080640.

The previous prime is 97522213. The next prime is 97522223. The reversal of 97522217 is 71222579.

It can be written as a sum of positive squares in 8 ways, for example, as 1893376 + 95628841 = 1376^2 + 9779^2 .

It is not a de Polignac number, because 97522217 - 2² = 97522213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97522211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28667 + ... + 31887.

It is an arithmetic number, because the mean of its divisors is an integer number (7003017).

Almost surely, 2^97522217 is an apocalyptic number.

It is an amenable number.

97522217 is a deficient number, since it is larger than the sum of its proper divisors (14526055).

97522217 is a wasteful number, since it uses less digits than its factorization.

97522217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388.

The product of its digits is 17640, while the sum is 35.

The square root of 97522217 is about 9875.3337665114. Note that the first 3 decimals coincide. The cubic root of 97522217 is about 460.2931606384.

The spelling of 97522217 in words is "ninety-seven million, five hundred twenty-two thousand, two hundred seventeen".