23991677 has 2 divisors, whose sum is σ = 23991678. Its totient is φ = 23991676.

The previous prime is 23991631. The next prime is 23991713. The reversal of 23991677 is 77619932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 11978521 = 3466^2 + 3461^2 .

It is a cyclic number.

It is not a de Polignac number, because 23991677 - 2¹⁴ = 23975293 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 (23991977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11995838 + 11995839.

It is an arithmetic number, because the mean of its divisors is an integer number (11995839).

Almost surely, 2^23991677 is an apocalyptic number.

It is an amenable number.

23991677 is a deficient number, since it is larger than the sum of its proper divisors (1).

23991677 is an equidigital number, since it uses as much as digits as its factorization.

23991677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 23991677 is about 4898.1299492766. The cubic root of 23991677 is about 288.4165661974.

The spelling of 23991677 in words is "twenty-three million, nine hundred ninety-one thousand, six hundred seventy-seven".