23073919 has 4 divisors (see below), whose sum is σ = 25171560. Its totient is φ = 20976280.

The previous prime is 23073901. The next prime is 23073931. The reversal of 23073919 is 91937032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23073919 - 2⁵ = 23073887 is a prime.

It is a super-2 number, since 2×23073919² = 1064811476037122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23073989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048804 + ... + 1048825.

It is an arithmetic number, because the mean of its divisors is an integer number (6292890).

Almost surely, 2^23073919 is an apocalyptic number.

23073919 is a deficient number, since it is larger than the sum of its proper divisors (2097641).

23073919 is a wasteful number, since it uses less digits than its factorization.

23073919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097640.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 23073919 is about 4803.5319297367. The cubic root of 23073919 is about 284.6910327713.

It can be divided in two parts, 2307 and 3919, that added together give a palindrome (6226).

The spelling of 23073919 in words is "twenty-three million, seventy-three thousand, nine hundred nineteen".