23109493 has 8 divisors (see below), whose sum is σ = 25379136. Its totient is φ = 20868000.

The previous prime is 23109481. The next prime is 23109523. The reversal of 23109493 is 39490132.

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 23109493 - 2¹³ = 23101301 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 (23109403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5296 + ... + 8617.

It is an arithmetic number, because the mean of its divisors is an integer number (3172392).

Almost surely, 2^23109493 is an apocalyptic number.

It is an amenable number.

23109493 is a deficient number, since it is larger than the sum of its proper divisors (2269643).

23109493 is a wasteful number, since it uses less digits than its factorization.

23109493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14075.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23109493 is about 4807.2334039445. The cubic root of 23109493 is about 284.8372642307.

The spelling of 23109493 in words is "twenty-three million, one hundred nine thousand, four hundred ninety-three".