22739091 has 4 divisors (see below), whose sum is σ = 30318792. Its totient is φ = 15159392.

The previous prime is 22739083. The next prime is 22739107. The reversal of 22739091 is 19093722.

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

It is a cyclic number.

It is not a de Polignac number, because 22739091 - 2³ = 22739083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22739021) 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, 3789846 + ... + 3789851.

It is an arithmetic number, because the mean of its divisors is an integer number (7579698).

Almost surely, 2^22739091 is an apocalyptic number.

22739091 is a deficient number, since it is larger than the sum of its proper divisors (7579701).

22739091 is an equidigital number, since it uses as much as digits as its factorization.

22739091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579700.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 22739091 is about 4768.5522960328. The cubic root of 22739091 is about 283.3072574234.

The spelling of 22739091 in words is "twenty-two million, seven hundred thirty-nine thousand, ninety-one".