22879987 has 8 divisors (see below), whose sum is σ = 24723104. Its totient is φ = 21048768.

The previous prime is 22879979. The next prime is 22879991. The reversal of 22879987 is 78997822.

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

It is not a de Polignac number, because 22879987 - 2³ = 22879979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22879907) 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, 1258 + ... + 6880.

It is an arithmetic number, because the mean of its divisors is an integer number (3090388).

Almost surely, 2^22879987 is an apocalyptic number.

22879987 is a deficient number, since it is larger than the sum of its proper divisors (1843117).

22879987 is a wasteful number, since it uses less digits than its factorization.

22879987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949.

The product of its digits is 1016064, while the sum is 52.

The square root of 22879987 is about 4783.3029383471. The cubic root of 22879987 is about 283.8911960055.

The spelling of 22879987 in words is "twenty-two million, eight hundred seventy-nine thousand, nine hundred eighty-seven".