23228397 has 8 divisors (see below), whose sum is σ = 34412480. Its totient is φ = 15485580.

The previous prime is 23228383. The next prime is 23228437. The reversal of 23228397 is 79382232.

It is not a de Polignac number, because 23228397 - 2⁸ = 23228141 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 (23228327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430129 + ... + 430182.

It is an arithmetic number, because the mean of its divisors is an integer number (4301560).

Almost surely, 2^23228397 is an apocalyptic number.

23228397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23228397 is a deficient number, since it is larger than the sum of its proper divisors (11184083).

23228397 is an equidigital number, since it uses as much as digits as its factorization.

23228397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860320 (or 860314 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23228397 is about 4819.5847331487. The cubic root of 23228397 is about 285.3249479235.

The spelling of 23228397 in words is "twenty-three million, two hundred twenty-eight thousand, three hundred ninety-seven".