23078639 has 8 divisors (see below), whose sum is σ = 25097328. Its totient is φ = 21133440.

The previous prime is 23078633. The next prime is 23078647. The reversal of 23078639 is 93687032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23078639 - 2⁸ = 23078383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23078633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17717 + ... + 18974.

It is an arithmetic number, because the mean of its divisors is an integer number (3137166).

Almost surely, 2^23078639 is an apocalyptic number.

23078639 is a deficient number, since it is larger than the sum of its proper divisors (2018689).

23078639 is a wasteful number, since it uses less digits than its factorization.

23078639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36745.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23078639 is about 4804.0232097691. The cubic root of 23078639 is about 284.7104435768.

The spelling of 23078639 in words is "twenty-three million, seventy-eight thousand, six hundred thirty-nine".