22367621 has 4 divisors (see below), whose sum is σ = 22543872. Its totient is φ = 22191372.

The previous prime is 22367603. The next prime is 22367623. The reversal of 22367621 is 12676322.

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.

It is a cyclic number.

It is not a de Polignac number, because 22367621 - 2¹⁴ = 22351237 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 (22367623) 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, 87935 + ... + 88188.

It is an arithmetic number, because the mean of its divisors is an integer number (5635968).

Almost surely, 2^22367621 is an apocalyptic number.

It is an amenable number.

22367621 is a deficient number, since it is larger than the sum of its proper divisors (176251).

22367621 is a wasteful number, since it uses less digits than its factorization.

22367621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176250.

The product of its digits is 6048, while the sum is 29.

The square root of 22367621 is about 4729.4419332517. The cubic root of 22367621 is about 281.7560596872.

The spelling of 22367621 in words is "twenty-two million, three hundred sixty-seven thousand, six hundred twenty-one".