2439191 has 4 divisors (see below), whose sum is σ = 2442984. Its totient is φ = 2435400.

The previous prime is 2439181. The next prime is 2439197. The reversal of 2439191 is 1919342.

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 2439191 - 2¹⁴ = 2422807 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 (2439197) 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, 665 + ... + 2306.

It is an arithmetic number, because the mean of its divisors is an integer number (610746).

2^2439191 is an apocalyptic number.

2439191 is a deficient number, since it is larger than the sum of its proper divisors (3793).

2439191 is an equidigital number, since it uses as much as digits as its factorization.

2439191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792.

The product of its digits is 1944, while the sum is 29.

The square root of 2439191 is about 1561.7909591235. The cubic root of 2439191 is about 134.6114295185.

The spelling of 2439191 in words is "two million, four hundred thirty-nine thousand, one hundred ninety-one".