97372845 has 18 divisors (see below), whose sum is σ = 168894414. Its totient is φ = 51896880.

The previous prime is 97372843. The next prime is 97372859. The reversal of 97372845 is 54827379.

It can be written as a sum of positive squares in only one way, i.e., 77898276 + 19474569 = 8826^2 + 4413^2 .

It is not a de Polignac number, because 97372845 - 2¹ = 97372843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97372845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97372843) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65460 + ... + 66930.

It is an arithmetic number, because the mean of its divisors is an integer number (9383023).

Almost surely, 2^97372845 is an apocalyptic number.

It is an amenable number.

97372845 is a deficient number, since it is larger than the sum of its proper divisors (71521569).

97372845 is an equidigital number, since it uses as much as digits as its factorization.

97372845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953 (or 1479 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 97372845 is about 9867.7679847066. The cubic root of 97372845 is about 460.0580345809.

Multiplying 97372845 by its sum of digits (45), we get a square (4381778025 = 66195²).

97372845 divided by its sum of digits (45) gives a square (2163841 = 1471²).

The spelling of 97372845 in words is "ninety-seven million, three hundred seventy-two thousand, eight hundred forty-five".