22985783 has 4 divisors (see below), whose sum is σ = 23140200. Its totient is φ = 22831368.

The previous prime is 22985749. The next prime is 22985813. The reversal of 22985783 is 38758922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38758922 = 2 ⋅19379461.

It is a cyclic number.

It is not a de Polignac number, because 22985783 - 2⁸ = 22985527 is a prime.

It is a super-3 number, since 3×22985783³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22985483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76985 + ... + 77282.

It is an arithmetic number, because the mean of its divisors is an integer number (5785050).

Almost surely, 2^22985783 is an apocalyptic number.

22985783 is a deficient number, since it is larger than the sum of its proper divisors (154417).

22985783 is a wasteful number, since it uses less digits than its factorization.

22985783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154416.

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

The square root of 22985783 is about 4794.3490694775. The cubic root of 22985783 is about 284.3280898833.

The spelling of 22985783 in words is "twenty-two million, nine hundred eighty-five thousand, seven hundred eighty-three".