97666245 has 12 divisors (see below), whose sum is σ = 169288236. Its totient is φ = 52088640.

The previous prime is 97666193. The next prime is 97666253. The reversal of 97666245 is 54266679.

It can be written as a sum of positive squares in 2 ways, for example, as 36216324 + 61449921 = 6018^2 + 7839^2 .

It is not a de Polignac number, because 97666245 - 2⁷ = 97666117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2170361 = 97666245 / (9 + 7 + 6 + 6 + 6 + 2 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 97666245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1085136 + ... + 1085225.

It is an arithmetic number, because the mean of its divisors is an integer number (14107353).

Almost surely, 2^97666245 is an apocalyptic number.

It is an amenable number.

97666245 is a deficient number, since it is larger than the sum of its proper divisors (71621991).

97666245 is a wasteful number, since it uses less digits than its factorization.

97666245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170372 (or 2170369 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 97666245 is about 9882.6233865305. The cubic root of 97666245 is about 460.5196474692.

The spelling of 97666245 in words is "ninety-seven million, six hundred sixty-six thousand, two hundred forty-five".