247887 has 8 divisors (see below), whose sum is σ = 367280. Its totient is φ = 165240.

The previous prime is 247879. The next prime is 247889. The reversal of 247887 is 788742.

247887 is nontrivially palindromic in base 2.

247887 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247887 - 2³ = 247879 is a prime.

It is a super-2 number, since 2×247887² = 122895929538, which contains 22 as substring.

It is a Duffinian number.

247887 is strictly pandigital in base 7.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564 + ... + 4617.

It is an arithmetic number, because the mean of its divisors is an integer number (45910).

2²⁴⁷⁸⁸⁷ is an apocalyptic number.

247887 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

247887 is a deficient number, since it is larger than the sum of its proper divisors (119393).

247887 is an equidigital number, since it uses as much as digits as its factorization.

247887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190 (or 9184 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 247887 is about 497.8825162626. The cubic root of 247887 is about 62.8180692322.

The spelling of 247887 in words is "two hundred forty-seven thousand, eight hundred eighty-seven".