22987982 has 8 divisors (see below), whose sum is σ = 35215776. Its totient is φ = 11249392.

The previous prime is 22987969. The next prime is 22987997. The reversal of 22987982 is 28978922.

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

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 122183 + ... + 122370.

It is an arithmetic number, because the mean of its divisors is an integer number (4401972).

Almost surely, 2^22987982 is an apocalyptic number.

22987982 is a deficient number, since it is larger than the sum of its proper divisors (12227794).

22987982 is a wasteful number, since it uses less digits than its factorization.

22987982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244602.

The product of its digits is 290304, while the sum is 47.

The square root of 22987982 is about 4794.5783964808. The cubic root of 22987982 is about 284.3371566113.

The spelling of 22987982 in words is "twenty-two million, nine hundred eighty-seven thousand, nine hundred eighty-two".