22933091 has 4 divisors (see below), whose sum is σ = 22967352. Its totient is φ = 22898832.

The previous prime is 22933069. The next prime is 22933109. The reversal of 22933091 is 19033922.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22933091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22933021) 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, 16106 + ... + 17471.

It is an arithmetic number, because the mean of its divisors is an integer number (5741838).

Almost surely, 2^22933091 is an apocalyptic number.

22933091 is a deficient number, since it is larger than the sum of its proper divisors (34261).

22933091 is an equidigital number, since it uses as much as digits as its factorization.

22933091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34260.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 22933091 is about 4788.8506971924. The cubic root of 22933091 is about 284.1106615960.

It can be divided in two parts, 229330 and 91, that multiplied together give a triangular number (20869030 = T₆₄₆₀).

The spelling of 22933091 in words is "twenty-two million, nine hundred thirty-three thousand, ninety-one".