23773949 has 2 divisors, whose sum is σ = 23773950. Its totient is φ = 23773948.

The previous prime is 23773907. The next prime is 23774027. The reversal of 23773949 is 94937732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22629049 + 1144900 = 4757^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 23773949 - 2²⁴ = 6996733 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 (23770949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886974 + 11886975.

It is an arithmetic number, because the mean of its divisors is an integer number (11886975).

Almost surely, 2^23773949 is an apocalyptic number.

It is an amenable number.

23773949 is a deficient number, since it is larger than the sum of its proper divisors (1).

23773949 is an equidigital number, since it uses as much as digits as its factorization.

23773949 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23773949 is about 4875.8536688461. The cubic root of 23773949 is about 287.5414392694.

The spelling of 23773949 in words is "twenty-three million, seven hundred seventy-three thousand, nine hundred forty-nine".