22124987 has 8 divisors (see below), whose sum is σ = 23338560. Its totient is φ = 20916360.

The previous prime is 22124969. The next prime is 22124989. The reversal of 22124987 is 78942122.

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 22124987 - 2⁶ = 22124923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22124989) 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, 11312 + ... + 13122.

It is an arithmetic number, because the mean of its divisors is an integer number (2917320).

Almost surely, 2^22124987 is an apocalyptic number.

22124987 is a deficient number, since it is larger than the sum of its proper divisors (1213573).

22124987 is a wasteful number, since it uses less digits than its factorization.

22124987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473.

The product of its digits is 16128, while the sum is 35.

The square root of 22124987 is about 4703.7205486721. The cubic root of 22124987 is about 280.7335654165.

The spelling of 22124987 in words is "twenty-two million, one hundred twenty-four thousand, nine hundred eighty-seven".