23211393 has 8 divisors (see below), whose sum is σ = 32294208. Its totient is φ = 14801424.

The previous prime is 23211389. The next prime is 23211427. The reversal of 23211393 is 39311232.

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

It is not a de Polignac number, because 23211393 - 2² = 23211389 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23211313) 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, 168130 + ... + 168267.

It is an arithmetic number, because the mean of its divisors is an integer number (4036776).

Almost surely, 2^23211393 is an apocalyptic number.

23211393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23211393 is a deficient number, since it is larger than the sum of its proper divisors (9082815).

23211393 is a wasteful number, since it uses less digits than its factorization.

23211393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336423.

The product of its digits is 972, while the sum is 24.

The square root of 23211393 is about 4817.8203577967. The cubic root of 23211393 is about 285.2553083101.

The spelling of 23211393 in words is "twenty-three million, two hundred eleven thousand, three hundred ninety-three".