22326987 has 8 divisors (see below), whose sum is σ = 29793280. Its totient is φ = 14872680.

The previous prime is 22326971. The next prime is 22326989. The reversal of 22326987 is 78962322.

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

It is not a de Polignac number, because 22326987 - 2⁴ = 22326971 is a prime.

It is a super-3 number, since 3×22326987³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22326989) 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, 3162 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (3724160).

Almost surely, 2^22326987 is an apocalyptic number.

22326987 is a deficient number, since it is larger than the sum of its proper divisors (7466293).

22326987 is a wasteful number, since it uses less digits than its factorization.

22326987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993.

The product of its digits is 72576, while the sum is 39.

The square root of 22326987 is about 4725.1441247860. The cubic root of 22326987 is about 281.5853394666.

The spelling of 22326987 in words is "twenty-two million, three hundred twenty-six thousand, nine hundred eighty-seven".