29223913 has 4 divisors (see below), whose sum is σ = 29316420. Its totient is φ = 29131408.

The previous prime is 29223911. The next prime is 29223923. The reversal of 29223913 is 31932292.

It is a happy number.

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 7573504 + 21650409 = 2752^2 + 4653^2 .

It is a cyclic number.

It is not a de Polignac number, because 29223913 - 2¹ = 29223911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29223911) 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, 45778 + ... + 46411.

It is an arithmetic number, because the mean of its divisors is an integer number (7329105).

Almost surely, 2^29223913 is an apocalyptic number.

It is an amenable number.

29223913 is a deficient number, since it is larger than the sum of its proper divisors (92507).

29223913 is an equidigital number, since it uses as much as digits as its factorization.

29223913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92506.

The product of its digits is 5832, while the sum is 31.

The square root of 29223913 is about 5405.9146312164. The cubic root of 29223913 is about 308.0203822178.

The spelling of 29223913 in words is "twenty-nine million, two hundred twenty-three thousand, nine hundred thirteen".