23861249 has 2 divisors, whose sum is σ = 23861250. Its totient is φ = 23861248.

The previous prime is 23861219. The next prime is 23861269. The reversal of 23861249 is 94216832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 628849 = 4820^2 + 793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23861249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23861209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11930624 + 11930625.

It is an arithmetic number, because the mean of its divisors is an integer number (11930625).

Almost surely, 2^23861249 is an apocalyptic number.

It is an amenable number.

23861249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23861249 is an equidigital number, since it uses as much as digits as its factorization.

23861249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 23861249 is about 4884.7977440218. The cubic root of 23861249 is about 287.8929683619.

The spelling of 23861249 in words is "twenty-three million, eight hundred sixty-one thousand, two hundred forty-nine".