22166783 has 4 divisors (see below), whose sum is σ = 22201080. Its totient is φ = 22132488.

The previous prime is 22166741. The next prime is 22166789. The reversal of 22166783 is 38766122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38766122 = 2 ⋅19383061.

It is a cyclic number.

It is not a de Polignac number, because 22166783 - 2⁶ = 22166719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166789) 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, 16160 + ... + 17477.

It is an arithmetic number, because the mean of its divisors is an integer number (5550270).

Almost surely, 2^22166783 is an apocalyptic number.

22166783 is a deficient number, since it is larger than the sum of its proper divisors (34297).

22166783 is an equidigital number, since it uses as much as digits as its factorization.

22166783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34296.

The product of its digits is 24192, while the sum is 35.

The square root of 22166783 is about 4708.1613183917. The cubic root of 22166783 is about 280.9102308203.

The spelling of 22166783 in words is "twenty-two million, one hundred sixty-six thousand, seven hundred eighty-three".