22850621 has 8 divisors (see below), whose sum is σ = 23124024. Its totient is φ = 22579200.

The previous prime is 22850609. The next prime is 22850629. The reversal of 22850621 is 12605822.

It can be written as a sum of positive squares in 4 ways, for example, as 10982596 + 11868025 = 3314^2 + 3445^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22850621 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 (22850629) 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, 37721 + ... + 38321.

It is an arithmetic number, because the mean of its divisors is an integer number (2890503).

Almost surely, 2^22850621 is an apocalyptic number.

It is an amenable number.

22850621 is a deficient number, since it is larger than the sum of its proper divisors (273403).

22850621 is a wasteful number, since it uses less digits than its factorization.

22850621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 22850621 is about 4780.2323165302. The cubic root of 22850621 is about 283.7696878057.

The spelling of 22850621 in words is "twenty-two million, eight hundred fifty thousand, six hundred twenty-one".