4429891 has 4 divisors (see below), whose sum is σ = 4524192. Its totient is φ = 4335592.

The previous prime is 4429883. The next prime is 4429933. The reversal of 4429891 is 1989244.

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 4429891 - 2³ = 4429883 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 4429891.

It is not an unprimeable number, because it can be changed into a prime (4429801) 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, 47080 + ... + 47173.

It is an arithmetic number, because the mean of its divisors is an integer number (1131048).

Almost surely, 2^4429891 is an apocalyptic number.

4429891 is a deficient number, since it is larger than the sum of its proper divisors (94301).

4429891 is an equidigital number, since it uses as much as digits as its factorization.

4429891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94300.

The product of its digits is 20736, while the sum is 37.

The square root of 4429891 is about 2104.7306240942. The cubic root of 4429891 is about 164.2344826481.

The spelling of 4429891 in words is "four million, four hundred twenty-nine thousand, eight hundred ninety-one".