23970449 has 2 divisors, whose sum is σ = 23970450. Its totient is φ = 23970448.

The previous prime is 23970437. The next prime is 23970451. The reversal of 23970449 is 94407932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23571025 + 399424 = 4855^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 23970449 - 2⁴ = 23970433 is a prime.

Together with 23970451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23973449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985224 + 11985225.

It is an arithmetic number, because the mean of its divisors is an integer number (11985225).

Almost surely, 2^23970449 is an apocalyptic number.

It is an amenable number.

23970449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23970449 is an equidigital number, since it uses as much as digits as its factorization.

23970449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23970449 is about 4895.9625202814. The cubic root of 23970449 is about 288.3314767794.

The spelling of 23970449 in words is "twenty-three million, nine hundred seventy thousand, four hundred forty-nine".