97172249 has 4 divisors (see below), whose sum is σ = 99798564. Its totient is φ = 94545936.

The previous prime is 97172239. The next prime is 97172269. The reversal of 97172249 is 94227179.

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 40094224 + 57078025 = 6332^2 + 7555^2 .

It is a cyclic number.

It is not a de Polignac number, because 97172249 - 2²⁴ = 80395033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97172239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313102 + ... + 1313175.

It is an arithmetic number, because the mean of its divisors is an integer number (24949641).

Almost surely, 2^97172249 is an apocalyptic number.

It is an amenable number.

97172249 is a deficient number, since it is larger than the sum of its proper divisors (2626315).

97172249 is a wasteful number, since it uses less digits than its factorization.

97172249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626314.

The product of its digits is 63504, while the sum is 41.

The square root of 97172249 is about 9857.5985412270. The cubic root of 97172249 is about 459.7418983719.

The spelling of 97172249 in words is "ninety-seven million, one hundred seventy-two thousand, two hundred forty-nine".