23797021 has 2 divisors, whose sum is σ = 23797022. Its totient is φ = 23797020.

The previous prime is 23796979. The next prime is 23797043. The reversal of 23797021 is 12079732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14100025 + 9696996 = 3755^2 + 3114^2 .

It is a cyclic number.

It is not a de Polignac number, because 23797021 - 2¹³ = 23788829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23797321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11898510 + 11898511.

It is an arithmetic number, because the mean of its divisors is an integer number (11898511).

Almost surely, 2^23797021 is an apocalyptic number.

It is an amenable number.

23797021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23797021 is an equidigital number, since it uses as much as digits as its factorization.

23797021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 23797021 is about 4878.2190397726. The cubic root of 23797021 is about 287.6344263614.

The spelling of 23797021 in words is "twenty-three million, seven hundred ninety-seven thousand, twenty-one".