22684387 has 4 divisors (see below), whose sum is σ = 24746616. Its totient is φ = 20622160.

The previous prime is 22684381. The next prime is 22684393. The reversal of 22684387 is 78348622.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22684381) and next prime (22684393).

It is a cyclic number.

It is not a de Polignac number, because 22684387 - 2¹¹ = 22682339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22684381) 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, 1031098 + ... + 1031119.

It is an arithmetic number, because the mean of its divisors is an integer number (6186654).

Almost surely, 2^22684387 is an apocalyptic number.

22684387 is a deficient number, since it is larger than the sum of its proper divisors (2062229).

22684387 is a wasteful number, since it uses less digits than its factorization.

22684387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062228.

The product of its digits is 129024, while the sum is 40.

The square root of 22684387 is about 4762.8129293517. The cubic root of 22684387 is about 283.0798885449.

The spelling of 22684387 in words is "twenty-two million, six hundred eighty-four thousand, three hundred eighty-seven".