23964397 has 2 divisors, whose sum is σ = 23964398. Its totient is φ = 23964396.

The previous prime is 23964389. The next prime is 23964431. The reversal of 23964397 is 79346932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 866761 = 4806^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 23964397 - 2³ = 23964389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23964307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11982198 + 11982199.

It is an arithmetic number, because the mean of its divisors is an integer number (11982199).

Almost surely, 2^23964397 is an apocalyptic number.

It is an amenable number.

23964397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23964397 is an equidigital number, since it uses as much as digits as its factorization.

23964397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 23964397 is about 4895.3444209780. The cubic root of 23964397 is about 288.3072089963.

The spelling of 23964397 in words is "twenty-three million, nine hundred sixty-four thousand, three hundred ninety-seven".