23473997 has 2 divisors, whose sum is σ = 23473998. Its totient is φ = 23473996.

The previous prime is 23473993. The next prime is 23474023. The reversal of 23473997 is 79937432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 1674436 = 4669^2 + 1294^2 .

It is a cyclic number.

It is not a de Polignac number, because 23473997 - 2² = 23473993 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 (23473993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11736998 + 11736999.

It is an arithmetic number, because the mean of its divisors is an integer number (11736999).

Almost surely, 2^23473997 is an apocalyptic number.

It is an amenable number.

23473997 is a deficient number, since it is larger than the sum of its proper divisors (1).

23473997 is an equidigital number, since it uses as much as digits as its factorization.

23473997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 23473997 is about 4844.9971104223. The cubic root of 23473997 is about 286.3270298596.

The spelling of 23473997 in words is "twenty-three million, four hundred seventy-three thousand, nine hundred ninety-seven".