23973869 has 2 divisors, whose sum is σ = 23973870. Its totient is φ = 23973868.

The previous prime is 23973863. The next prime is 23973871. The reversal of 23973869 is 96837932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 1525225 = 4738^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 23973869 - 2¹⁶ = 23908333 is a prime.

It is a super-3 number, since 3×23973869³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 23973871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23973863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11986934 + 11986935.

It is an arithmetic number, because the mean of its divisors is an integer number (11986935).

Almost surely, 2^23973869 is an apocalyptic number.

It is an amenable number.

23973869 is a deficient number, since it is larger than the sum of its proper divisors (1).

23973869 is an equidigital number, since it uses as much as digits as its factorization.

23973869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 23973869 is about 4896.3117752039. The cubic root of 23973869 is about 288.3451887567.

It can be divided in two parts, 23973 and 869, that added together give a palindrome (24842).

The spelling of 23973869 in words is "twenty-three million, nine hundred seventy-three thousand, eight hundred sixty-nine".