23489279 has 16 divisors (see below), whose sum is σ = 26922240. Its totient is φ = 20285760.

The previous prime is 23489261. The next prime is 23489287. The reversal of 23489279 is 97298432.

It is not a de Polignac number, because 23489279 - 2²⁰ = 22440703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23489239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57227 + ... + 57635.

It is an arithmetic number, because the mean of its divisors is an integer number (1682640).

Almost surely, 2^23489279 is an apocalyptic number.

23489279 is a deficient number, since it is larger than the sum of its proper divisors (3432961).

23489279 is a wasteful number, since it uses less digits than its factorization.

23489279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670.

The product of its digits is 217728, while the sum is 44.

The square root of 23489279 is about 4846.5739445509. The cubic root of 23489279 is about 286.3891510863.

The spelling of 23489279 in words is "twenty-three million, four hundred eighty-nine thousand, two hundred seventy-nine".