23050891 has 4 divisors (see below), whose sum is σ = 23226984. Its totient is φ = 22874800.

The previous prime is 23050873. The next prime is 23050901. The reversal of 23050891 is 19805032.

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 23050891 - 2¹³ = 23042699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23050801) 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, 87850 + ... + 88111.

It is an arithmetic number, because the mean of its divisors is an integer number (5806746).

Almost surely, 2^23050891 is an apocalyptic number.

23050891 is a deficient number, since it is larger than the sum of its proper divisors (176093).

23050891 is a wasteful number, since it uses less digits than its factorization.

23050891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176092.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 23050891 is about 4801.1343451314. The cubic root of 23050891 is about 284.5962930892.

The spelling of 23050891 in words is "twenty-three million, fifty thousand, eight hundred ninety-one".