23978233 has 2 divisors, whose sum is σ = 23978234. Its totient is φ = 23978232.

The previous prime is 23978179. The next prime is 23978239. The reversal of 23978233 is 33287932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12089529 + 11888704 = 3477^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 23978233 - 2¹³ = 23970041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23978192 and 23978201.

It is not a weakly prime, because it can be changed into another prime (23978239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11989116 + 11989117.

It is an arithmetic number, because the mean of its divisors is an integer number (11989117).

Almost surely, 2^23978233 is an apocalyptic number.

It is an amenable number.

23978233 is a deficient number, since it is larger than the sum of its proper divisors (1).

23978233 is an equidigital number, since it uses as much as digits as its factorization.

23978233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 23978233 is about 4896.7573964819. The cubic root of 23978233 is about 288.3626836670.

The spelling of 23978233 in words is "twenty-three million, nine hundred seventy-eight thousand, two hundred thirty-three".