2297431993 has 4 divisors (see below), whose sum is σ = 2350860688. Its totient is φ = 2244003300.

The previous prime is 2297431991. The next prime is 2297432017. The reversal of 2297431993 is 3991347922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3991347922 = 2 ⋅1995673961.

It is a cyclic number.

It is not a de Polignac number, because 2297431993 - 2¹ = 2297431991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2297431991) 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, 26714283 + ... + 26714368.

It is an arithmetic number, because the mean of its divisors is an integer number (587715172).

Almost surely, 2^2297431993 is an apocalyptic number.

It is an amenable number.

2297431993 is a deficient number, since it is larger than the sum of its proper divisors (53428695).

2297431993 is an equidigital number, since it uses as much as digits as its factorization.

2297431993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53428694.

The product of its digits is 734832, while the sum is 49.

The square root of 2297431993 is about 47931.5344319374. The cubic root of 2297431993 is about 1319.5146656601.

The spelling of 2297431993 in words is "two billion, two hundred ninety-seven million, four hundred thirty-one thousand, nine hundred ninety-three".