23078239 has 2 divisors, whose sum is σ = 23078240. Its totient is φ = 23078238.

The previous prime is 23078219. The next prime is 23078257. The reversal of 23078239 is 93287032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23078239 - 2⁵ = 23078207 is a prime.

It is a super-3 number, since 3×23078239³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23078219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11539119 + 11539120.

It is an arithmetic number, because the mean of its divisors is an integer number (11539120).

Almost surely, 2^23078239 is an apocalyptic number.

23078239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23078239 is an equidigital number, since it uses as much as digits as its factorization.

23078239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 23078239 is about 4803.9815778165. The cubic root of 23078239 is about 284.7087986959.

The spelling of 23078239 in words is "twenty-three million, seventy-eight thousand, two hundred thirty-nine".