23216319 has 12 divisors (see below), whose sum is σ = 38325456. Its totient is φ = 13266432.

The previous prime is 23216293. The next prime is 23216341. The reversal of 23216319 is 91361232.

23216319 is a `hidden beast` number, since 2 + 3 + 21 + 631 + 9 = 666.

It is not a de Polignac number, because 23216319 - 2⁵ = 23216287 is a prime.

It is a super-2 number, since 2×23216319² = 1077994935819522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23216292 and 23216301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184194 + ... + 184319.

It is an arithmetic number, because the mean of its divisors is an integer number (3193788).

Almost surely, 2^23216319 is an apocalyptic number.

23216319 is a deficient number, since it is larger than the sum of its proper divisors (15109137).

23216319 is a wasteful number, since it uses less digits than its factorization.

23216319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368526 (or 368523 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 23216319 is about 4818.3315577075. The cubic root of 23216319 is about 285.2754861635.

The spelling of 23216319 in words is "twenty-three million, two hundred sixteen thousand, three hundred nineteen".