22852991 has 8 divisors (see below), whose sum is σ = 27492480. Its totient is φ = 18557208.

The previous prime is 22852987. The next prime is 22852997. The reversal of 22852991 is 19925822.

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

It is a cyclic number.

It is not a de Polignac number, because 22852991 - 2² = 22852987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22852997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85781 + ... + 86046.

It is an arithmetic number, because the mean of its divisors is an integer number (3436560).

Almost surely, 2^22852991 is an apocalyptic number.

22852991 is a deficient number, since it is larger than the sum of its proper divisors (4639489).

22852991 is a wasteful number, since it uses less digits than its factorization.

22852991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171853.

The product of its digits is 25920, while the sum is 38.

The square root of 22852991 is about 4780.4802060044. The cubic root of 22852991 is about 283.7794980557.

The spelling of 22852991 in words is "twenty-two million, eight hundred fifty-two thousand, nine hundred ninety-one".