2487839 has 4 divisors (see below), whose sum is σ = 2548560. Its totient is φ = 2427120.

The previous prime is 2487833. The next prime is 2487883. The reversal of 2487839 is 9387842.

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 2487839 - 2¹² = 2483743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 60679 = 2487839 / (2 + 4 + 8 + 7 + 8 + 3 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 2487796 and 2487805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487833) 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, 30299 + ... + 30380.

It is an arithmetic number, because the mean of its divisors is an integer number (637140).

2^2487839 is an apocalyptic number.

2487839 is a deficient number, since it is larger than the sum of its proper divisors (60721).

2487839 is an equidigital number, since it uses as much as digits as its factorization.

2487839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60720.

The product of its digits is 96768, while the sum is 41.

The square root of 2487839 is about 1577.2884961224. The cubic root of 2487839 is about 135.5004561469.

The spelling of 2487839 in words is "two million, four hundred eighty-seven thousand, eight hundred thirty-nine".