29223109 has 4 divisors (see below), whose sum is σ = 29303104. Its totient is φ = 29143116.

The previous prime is 29223107. The next prime is 29223137. The reversal of 29223109 is 90132292.

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 29223109 - 2¹ = 29223107 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 (29223107) 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, 39447 + ... + 40180.

It is an arithmetic number, because the mean of its divisors is an integer number (7325776).

Almost surely, 2^29223109 is an apocalyptic number.

It is an amenable number.

29223109 is a deficient number, since it is larger than the sum of its proper divisors (79995).

29223109 is an equidigital number, since it uses as much as digits as its factorization.

29223109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79994.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 29223109 is about 5405.8402677105. The cubic root of 29223109 is about 308.0175574688.

The spelling of 29223109 in words is "twenty-nine million, two hundred twenty-three thousand, one hundred nine".