23172369 has 8 divisors (see below), whose sum is σ = 33705312. Its totient is φ = 14043840.

The previous prime is 23172367. The next prime is 23172371. The reversal of 23172369 is 96327132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23172367) and next prime (23172371).

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

It is not a de Polignac number, because 23172369 - 2¹ = 23172367 is a prime.

It is a super-2 number, since 2×23172369² = 1073917370144322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 702193 = 23172369 / (2 + 3 + 1 + 7 + 2 + 3 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (23172361) 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, 351064 + ... + 351129.

It is an arithmetic number, because the mean of its divisors is an integer number (4213164).

Almost surely, 2^23172369 is an apocalyptic number.

It is an amenable number.

23172369 is a deficient number, since it is larger than the sum of its proper divisors (10532943).

23172369 is a wasteful number, since it uses less digits than its factorization.

23172369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702207.

The product of its digits is 13608, while the sum is 33.

The square root of 23172369 is about 4813.7686899144. The cubic root of 23172369 is about 285.0953574416.

The spelling of 23172369 in words is "twenty-three million, one hundred seventy-two thousand, three hundred sixty-nine".