2297521973 has 4 divisors (see below), whose sum is σ = 2303309580. Its totient is φ = 2291734368.

The previous prime is 2297521939. The next prime is 2297521979. The reversal of 2297521973 is 3791257922.

2297521973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3791257922 = 2 ⋅1895628961.

It can be written as a sum of positive squares in 2 ways, for example, as 1286154769 + 1011367204 = 35863^2 + 31802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297521973 - 2⁶ = 2297521909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2297521979) 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, 2893208 + ... + 2894001.

It is an arithmetic number, because the mean of its divisors is an integer number (575827395).

Almost surely, 2^2297521973 is an apocalyptic number.

It is an amenable number.

2297521973 is a deficient number, since it is larger than the sum of its proper divisors (5787607).

2297521973 is an equidigital number, since it uses as much as digits as its factorization.

2297521973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787606.

The product of its digits is 476280, while the sum is 47.

The square root of 2297521973 is about 47932.4730532444. The cubic root of 2297521973 is about 1319.5318919052.

The spelling of 2297521973 in words is "two billion, two hundred ninety-seven million, five hundred twenty-one thousand, nine hundred seventy-three".