247884 has 48 divisors (see below), whose sum is σ = 715008. Its totient is φ = 65088.

The previous prime is 247879. The next prime is 247889. The reversal of 247884 is 488742.

It is an interprime number because it is at equal distance from previous prime (247879) and next prime (247889).

It is a super-2 number, since 2×247884² = 122892954912, which contains 22 as substring.

It is a nialpdrome in base 12.

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 15 ways as a sum of consecutive naturals, for example, 979 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (14896).

2²⁴⁷⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357504).

247884 is an abundant number, since it is smaller than the sum of its proper divisors (467124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247884 is a wasteful number, since it uses less digits than its factorization.

247884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 252 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 247884 is about 497.8795034946. The cubic root of 247884 is about 62.8178158170.

The spelling of 247884 in words is "two hundred forty-seven thousand, eight hundred eighty-four".