22987646 has 8 divisors (see below), whose sum is σ = 37616184. Its totient is φ = 10448920.

The previous prime is 22987607. The next prime is 22987673. The reversal of 22987646 is 64678922.

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

It is a junction number, because it is equal to n+sod(n) for n = 22987597 and 22987606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522425 + ... + 522468.

It is an arithmetic number, because the mean of its divisors is an integer number (4702023).

Almost surely, 2^22987646 is an apocalyptic number.

22987646 is a deficient number, since it is larger than the sum of its proper divisors (14628538).

22987646 is a wasteful number, since it uses less digits than its factorization.

22987646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044906.

The product of its digits is 290304, while the sum is 44.

The square root of 22987646 is about 4794.5433567755. The cubic root of 22987646 is about 284.3357712824.

It can be divided in two parts, 229876 and 46, that added together give a palindrome (229922).

The spelling of 22987646 in words is "twenty-two million, nine hundred eighty-seven thousand, six hundred forty-six".