22946891 has 4 divisors (see below), whose sum is σ = 25032984. Its totient is φ = 20860800.

The previous prime is 22946887. The next prime is 22946909. The reversal of 22946891 is 19864922.

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 22946891 - 2² = 22946887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22946591) 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, 1043030 + ... + 1043051.

It is an arithmetic number, because the mean of its divisors is an integer number (6258246).

Almost surely, 2^22946891 is an apocalyptic number.

22946891 is a deficient number, since it is larger than the sum of its proper divisors (2086093).

22946891 is a wasteful number, since it uses less digits than its factorization.

22946891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086092.

The product of its digits is 62208, while the sum is 41.

The square root of 22946891 is about 4790.2913272577. The cubic root of 22946891 is about 284.1676380841.

The spelling of 22946891 in words is "twenty-two million, nine hundred forty-six thousand, eight hundred ninety-one".