22685477 has 12 divisors (see below), whose sum is σ = 23847660. Its totient is φ = 21561408.

The previous prime is 22685389. The next prime is 22685479. The reversal of 22685477 is 77458622.

It can be written as a sum of positive squares in 2 ways, for example, as 12737761 + 9947716 = 3569^2 + 3154^2 .

It is not a de Polignac number, because 22685477 - 2²² = 18491173 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 (22685479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254849 + ... + 254937.

It is an arithmetic number, because the mean of its divisors is an integer number (1987305).

Almost surely, 2^22685477 is an apocalyptic number.

It is an amenable number.

22685477 is a deficient number, since it is larger than the sum of its proper divisors (1162183).

22685477 is an frugal number, since it uses more digits than its factorization.

22685477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 209 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 22685477 is about 4762.9273561540. The cubic root of 22685477 is about 283.0844225318.

The spelling of 22685477 in words is "twenty-two million, six hundred eighty-five thousand, four hundred seventy-seven".