28034443 has 8 divisors (see below), whose sum is σ = 29678400. Its totient is φ = 26407368.

The previous prime is 28034431. The next prime is 28034449. The reversal of 28034443 is 34443082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28034443 - 2⁹ = 28033931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28034449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721 + ... + 7522.

It is an arithmetic number, because the mean of its divisors is an integer number (3709800).

Almost surely, 2^28034443 is an apocalyptic number.

28034443 is a deficient number, since it is larger than the sum of its proper divisors (1643957).

28034443 is a wasteful number, since it uses less digits than its factorization.

28034443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 28034443 is about 5294.7561794666. The cubic root of 28034443 is about 303.7833571613.

The spelling of 28034443 in words is "twenty-eight million, thirty-four thousand, four hundred forty-three".