2487239 has 4 divisors (see below), whose sum is σ = 2498424. Its totient is φ = 2476056.

The previous prime is 2487229. The next prime is 2487259. The reversal of 2487239 is 9327842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9327842 = 2 ⋅4663921.

It is a cyclic number.

It is not a de Polignac number, because 2487239 - 2²⁰ = 1438663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2487199 and 2487208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487229) 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, 5252 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (624606).

2^2487239 is an apocalyptic number.

2487239 is a deficient number, since it is larger than the sum of its proper divisors (11185).

2487239 is a wasteful number, since it uses less digits than its factorization.

2487239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184.

The product of its digits is 24192, while the sum is 35.

The square root of 2487239 is about 1577.0982848256. The cubic root of 2487239 is about 135.4895622466.

The spelling of 2487239 in words is "two million, four hundred eighty-seven thousand, two hundred thirty-nine".