22729367 has 4 divisors (see below), whose sum is σ = 22793040. Its totient is φ = 22665696.

The previous prime is 22729363. The next prime is 22729373. The reversal of 22729367 is 76392722.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22729367 - 2² = 22729363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22729367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22729363) 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, 31298 + ... + 32015.

It is an arithmetic number, because the mean of its divisors is an integer number (5698260).

Almost surely, 2^22729367 is an apocalyptic number.

22729367 is a deficient number, since it is larger than the sum of its proper divisors (63673).

22729367 is an equidigital number, since it uses as much as digits as its factorization.

22729367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63672.

The product of its digits is 63504, while the sum is 38.

The square root of 22729367 is about 4767.5325903448. The cubic root of 22729367 is about 283.2668677620.

The spelling of 22729367 in words is "twenty-two million, seven hundred twenty-nine thousand, three hundred sixty-seven".