22786493 has 8 divisors (see below), whose sum is σ = 23370240. Its totient is φ = 22206960.

The previous prime is 22786483. The next prime is 22786501. The reversal of 22786493 is 39468722.

It is a happy number.

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 22786493 - 2⁶ = 22786429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22786493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22786433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11843 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (2921280).

Almost surely, 2^22786493 is an apocalyptic number.

It is an amenable number.

22786493 is a deficient number, since it is larger than the sum of its proper divisors (583747).

22786493 is a wasteful number, since it uses less digits than its factorization.

22786493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its digits is 145152, while the sum is 41.

The square root of 22786493 is about 4773.5199800566. The cubic root of 22786493 is about 283.5039819362.

The spelling of 22786493 in words is "twenty-two million, seven hundred eighty-six thousand, four hundred ninety-three".