22880917 has 4 divisors (see below), whose sum is σ = 23256076. Its totient is φ = 22505760.

The previous prime is 22880873. The next prime is 22880927. The reversal of 22880917 is 71908822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8242641 + 14638276 = 2871^2 + 3826^2 .

It is a cyclic number.

It is not a de Polignac number, because 22880917 - 2¹⁵ = 22848149 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 (22880927) 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, 187488 + ... + 187609.

It is an arithmetic number, because the mean of its divisors is an integer number (5814019).

Almost surely, 2^22880917 is an apocalyptic number.

It is an amenable number.

22880917 is a deficient number, since it is larger than the sum of its proper divisors (375159).

22880917 is an equidigital number, since it uses as much as digits as its factorization.

22880917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375158.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 22880917 is about 4783.4001505205. The cubic root of 22880917 is about 283.8950423834.

It can be divided in two parts, 228809 and 17, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 22880917 in words is "twenty-two million, eight hundred eighty thousand, nine hundred seventeen".