22427773 has 4 divisors (see below), whose sum is σ = 22444128. Its totient is φ = 22411420.

The previous prime is 22427753. The next prime is 22427837. The reversal of 22427773 is 37772422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37772422 = 2 ⋅18886211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22427773 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 (22427723) 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, 5911 + ... + 8932.

It is an arithmetic number, because the mean of its divisors is an integer number (5611032).

Almost surely, 2^22427773 is an apocalyptic number.

It is an amenable number.

22427773 is a deficient number, since it is larger than the sum of its proper divisors (16355).

22427773 is a wasteful number, since it uses less digits than its factorization.

22427773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16354.

The product of its digits is 32928, while the sum is 34.

The square root of 22427773 is about 4735.7969762227. The cubic root of 22427773 is about 282.0084039210.

The spelling of 22427773 in words is "twenty-two million, four hundred twenty-seven thousand, seven hundred seventy-three".