2447887 has 4 divisors (see below), whose sum is σ = 2636200. Its totient is φ = 2259576.

The previous prime is 2447843. The next prime is 2447897. The reversal of 2447887 is 7887442.

It is a happy number.

2447887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7887442 = 2 ⋅3943721.

It is a cyclic number.

It is not a de Polignac number, because 2447887 - 2⁷ = 2447759 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 (2447897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94137 + ... + 94162.

It is an arithmetic number, because the mean of its divisors is an integer number (659050).

2^2447887 is an apocalyptic number.

2447887 is a deficient number, since it is larger than the sum of its proper divisors (188313).

2447887 is a wasteful number, since it uses less digits than its factorization.

2447887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188312.

The product of its digits is 100352, while the sum is 40.

The square root of 2447887 is about 1564.5724655637. The cubic root of 2447887 is about 134.7712082668.

The spelling of 2447887 in words is "two million, four hundred forty-seven thousand, eight hundred eighty-seven".