2289823397 has 4 divisors (see below), whose sum is σ = 2389380960. Its totient is φ = 2190265836.

The previous prime is 2289823387. The next prime is 2289823427. The reversal of 2289823397 is 7933289822.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2289823397 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 (2289823337) 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, 49778747 + ... + 49778792.

It is an arithmetic number, because the mean of its divisors is an integer number (597345240).

Almost surely, 2^2289823397 is an apocalyptic number.

It is an amenable number.

2289823397 is a deficient number, since it is larger than the sum of its proper divisors (99557563).

2289823397 is an equidigital number, since it uses as much as digits as its factorization.

2289823397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99557562.

The product of its digits is 2612736, while the sum is 53.

The square root of 2289823397 is about 47852.0991911536. The cubic root of 2289823397 is about 1318.0564059560.

The spelling of 2289823397 in words is "two billion, two hundred eighty-nine million, eight hundred twenty-three thousand, three hundred ninety-seven".