247827 has 4 divisors (see below), whose sum is σ = 330440. Its totient is φ = 165216.

The previous prime is 247813. The next prime is 247829. The reversal of 247827 is 728742.

247827 is digitally balanced in base 7, 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.

It is not a de Polignac number, because 247827 - 2⁴ = 247811 is a prime.

It is a super-2 number, since 2×247827² = 122836443858, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

247827 is strictly pandigital in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 247794 and 247803.

It is not an unprimeable number, because it can be changed into a prime (247829) 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, 41302 + ... + 41307.

It is an arithmetic number, because the mean of its divisors is an integer number (82610).

2²⁴⁷⁸²⁷ is an apocalyptic number.

247827 is a deficient number, since it is larger than the sum of its proper divisors (82613).

247827 is an equidigital number, since it uses as much as digits as its factorization.

247827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82612.

The product of its digits is 6272, while the sum is 30.

The square root of 247827 is about 497.8222574373. The cubic root of 247827 is about 62.8130005406.

The spelling of 247827 in words is "two hundred forty-seven thousand, eight hundred twenty-seven".