2791439 has 8 divisors (see below), whose sum is σ = 3219360. Its totient is φ = 2370816.

The previous prime is 2791429. The next prime is 2791463. The reversal of 2791439 is 9341972.

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

It is not a de Polignac number, because 2791439 - 2⁸ = 2791183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2791399 and 2791408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791409) 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, 974 + ... + 2555.

It is an arithmetic number, because the mean of its divisors is an integer number (402420).

2^2791439 is an apocalyptic number.

2791439 is a deficient number, since it is larger than the sum of its proper divisors (427921).

2791439 is a wasteful number, since it uses less digits than its factorization.

2791439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649.

The product of its digits is 13608, while the sum is 35.

The square root of 2791439 is about 1670.7600067035. The cubic root of 2791439 is about 140.8021805523.

The spelling of 2791439 in words is "two million, seven hundred ninety-one thousand, four hundred thirty-nine".