23872397 has 2 divisors, whose sum is σ = 23872398. Its totient is φ = 23872396.

The previous prime is 23872393. The next prime is 23872421. The reversal of 23872397 is 79327832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23222761 + 649636 = 4819^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 23872397 - 2² = 23872393 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23872391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11936198 + 11936199.

It is an arithmetic number, because the mean of its divisors is an integer number (11936199).

Almost surely, 2^23872397 is an apocalyptic number.

It is an amenable number.

23872397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23872397 is an equidigital number, since it uses as much as digits as its factorization.

23872397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 23872397 is about 4885.9387020306. The cubic root of 23872397 is about 287.9377960115.

The spelling of 23872397 in words is "twenty-three million, eight hundred seventy-two thousand, three hundred ninety-seven".