22987015 has 8 divisors (see below), whose sum is σ = 27666000. Its totient is φ = 18335232.

The previous prime is 22986991. The next prime is 22987037. The reversal of 22987015 is 51078922.

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 22987015 - 2⁹ = 22986503 is a prime.

It is a super-2 number, since 2×22987015² = 1056805717220450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890 + ... + 8359.

It is an arithmetic number, because the mean of its divisors is an integer number (3458250).

Almost surely, 2^22987015 is an apocalyptic number.

22987015 is a deficient number, since it is larger than the sum of its proper divisors (4678985).

22987015 is a wasteful number, since it uses less digits than its factorization.

22987015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 22987015 is about 4794.4775523512. The cubic root of 22987015 is about 284.3331696312. Note that the first 3 decimals are identical.

The spelling of 22987015 in words is "twenty-two million, nine hundred eighty-seven thousand, fifteen".