22047685 has 32 divisors (see below), whose sum is σ = 31207680. Its totient is φ = 14784000.

The previous prime is 22047673. The next prime is 22047689. The reversal of 22047685 is 58674022.

It is not a de Polignac number, because 22047685 - 2¹¹ = 22045637 is a prime.

It is a super-2 number, since 2×22047685² = 972200827718450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22047685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36385 + ... + 36985.

It is an arithmetic number, because the mean of its divisors is an integer number (975240).

Almost surely, 2^22047685 is an apocalyptic number.

It is an amenable number.

22047685 is a deficient number, since it is larger than the sum of its proper divisors (9159995).

22047685 is a wasteful number, since it uses less digits than its factorization.

22047685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 22047685 is about 4695.4962464046. The cubic root of 22047685 is about 280.4062343149.

It can be divided in two parts, 2204 and 7685, that added together give a palindrome (9889).

The spelling of 22047685 in words is "twenty-two million, forty-seven thousand, six hundred eighty-five".