4291439 has 4 divisors (see below), whose sum is σ = 4330920. Its totient is φ = 4251960.

The previous prime is 4291403. The next prime is 4291447. The reversal of 4291439 is 9341924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4291439 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 (4291499) 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, 19577 + ... + 19794.

It is an arithmetic number, because the mean of its divisors is an integer number (1082730).

Almost surely, 2^4291439 is an apocalyptic number.

4291439 is a deficient number, since it is larger than the sum of its proper divisors (39481).

4291439 is a wasteful number, since it uses less digits than its factorization.

4291439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39480.

The product of its digits is 7776, while the sum is 32.

The square root of 4291439 is about 2071.5788664688. The cubic root of 4291439 is about 162.5053442029.

The spelling of 4291439 in words is "four million, two hundred ninety-one thousand, four hundred thirty-nine".