22791029 has 4 divisors (see below), whose sum is σ = 22829184. Its totient is φ = 22752876.

The previous prime is 22791019. The next prime is 22791037. The reversal of 22791029 is 92019722.

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 a de Polignac number, because none of the positive numbers 2^k-22791029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22790986 and 22791004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22791019) 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, 18167 + ... + 19380.

It is an arithmetic number, because the mean of its divisors is an integer number (5707296).

Almost surely, 2^22791029 is an apocalyptic number.

It is an amenable number.

22791029 is a deficient number, since it is larger than the sum of its proper divisors (38155).

22791029 is an equidigital number, since it uses as much as digits as its factorization.

22791029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38154.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 22791029 is about 4773.9950775006. The cubic root of 22791029 is about 283.5227926229.

The spelling of 22791029 in words is "twenty-two million, seven hundred ninety-one thousand, twenty-nine".