22687373 has 4 divisors (see below), whose sum is σ = 22759260. Its totient is φ = 22615488.

The previous prime is 22687331. The next prime is 22687397. The reversal of 22687373 is 37378622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8684809 + 14002564 = 2947^2 + 3742^2 .

It is a cyclic number.

It is not a de Polignac number, because 22687373 - 2²⁰ = 21638797 is a prime.

It is a super-2 number, since 2×22687373² = 1029433787282258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22687073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35468 + ... + 36101.

It is an arithmetic number, because the mean of its divisors is an integer number (5689815).

Almost surely, 2^22687373 is an apocalyptic number.

It is an amenable number.

22687373 is a deficient number, since it is larger than the sum of its proper divisors (71887).

22687373 is an equidigital number, since it uses as much as digits as its factorization.

22687373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71886.

The product of its digits is 84672, while the sum is 38.

The square root of 22687373 is about 4763.1263892532. The cubic root of 22687373 is about 283.0923088271.

The spelling of 22687373 in words is "twenty-two million, six hundred eighty-seven thousand, three hundred seventy-three".