2431047 has 4 divisors (see below), whose sum is σ = 3241400. Its totient is φ = 1620696.

The previous prime is 2431007. The next prime is 2431049. The reversal of 2431047 is 7401342.

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

It is not a de Polignac number, because 2431047 - 2¹¹ = 2428999 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431049) 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, 405172 + ... + 405177.

It is an arithmetic number, because the mean of its divisors is an integer number (810350).

2^2431047 is an apocalyptic number.

2431047 is a deficient number, since it is larger than the sum of its proper divisors (810353).

2431047 is an equidigital number, since it uses as much as digits as its factorization.

2431047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810352.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2431047 is about 1559.1815160526. The cubic root of 2431047 is about 134.4614483928.

Adding to 2431047 its reverse (7401342), we get a palindrome (9832389).

The spelling of 2431047 in words is "two million, four hundred thirty-one thousand, forty-seven".