22899891 has 8 divisors (see below), whose sum is σ = 34895104. Its totient is φ = 13085640.

The previous prime is 22899889. The next prime is 22899893. The reversal of 22899891 is 19899822.

It is an interprime number because it is at equal distance from previous prime (22899889) and next prime (22899893).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22899891 - 2¹ = 22899889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22899891.

It is not an unprimeable number, because it can be changed into a prime (22899893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545215 + ... + 545256.

It is an arithmetic number, because the mean of its divisors is an integer number (4361888).

Almost surely, 2^22899891 is an apocalyptic number.

22899891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22899891 is a deficient number, since it is larger than the sum of its proper divisors (11995213).

22899891 is a wasteful number, since it uses less digits than its factorization.

22899891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090481.

The product of its digits is 186624, while the sum is 48.

The square root of 22899891 is about 4785.3830567678. The cubic root of 22899891 is about 283.9734940217.

The spelling of 22899891 in words is "twenty-two million, eight hundred ninety-nine thousand, eight hundred ninety-one".