22987358 has 4 divisors (see below), whose sum is σ = 34481040. Its totient is φ = 11493678.

The previous prime is 22987331. The next prime is 22987379. The reversal of 22987358 is 85378922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85378922 = 2 ⋅42689461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5746838 + ... + 5746841.

It is an arithmetic number, because the mean of its divisors is an integer number (8620260).

Almost surely, 2^22987358 is an apocalyptic number.

22987358 is a deficient number, since it is larger than the sum of its proper divisors (11493682).

22987358 is a wasteful number, since it uses less digits than its factorization.

22987358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493681.

The product of its digits is 241920, while the sum is 44.

The square root of 22987358 is about 4794.5133225386. The cubic root of 22987358 is about 284.3345838468.

The spelling of 22987358 in words is "twenty-two million, nine hundred eighty-seven thousand, three hundred fifty-eight".