4339991 has 8 divisors (see below), whose sum is σ = 4423200. Its totient is φ = 4257792.

The previous prime is 4339963. The next prime is 4340003. The reversal of 4339991 is 1999334.

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 4339991 - 2⁶ = 4339927 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 (4339901) 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, 21710 + ... + 21908.

It is an arithmetic number, because the mean of its divisors is an integer number (552900).

Almost surely, 2^4339991 is an apocalyptic number.

4339991 is a deficient number, since it is larger than the sum of its proper divisors (83209).

4339991 is a wasteful number, since it uses less digits than its factorization.

4339991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its digits is 26244, while the sum is 38.

The square root of 4339991 is about 2083.2645055297. The cubic root of 4339991 is about 163.1158923390.

The spelling of 4339991 in words is "four million, three hundred thirty-nine thousand, nine hundred ninety-one".