22987870 has 8 divisors (see below), whose sum is σ = 41378184. Its totient is φ = 9195144.

The previous prime is 22987837. The next prime is 22987873. The reversal of 22987870 is 7878922.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22987873) 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, 1149384 + ... + 1149403.

It is an arithmetic number, because the mean of its divisors is an integer number (5172273).

Almost surely, 2^22987870 is an apocalyptic number.

22987870 is a deficient number, since it is larger than the sum of its proper divisors (18390314).

22987870 is a wasteful number, since it uses less digits than its factorization.

22987870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298794.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 22987870 is about 4794.5667166075. The cubic root of 22987870 is about 284.3366948365.

The spelling of 22987870 in words is "twenty-two million, nine hundred eighty-seven thousand, eight hundred seventy".