247812 has 24 divisors (see below), whose sum is σ = 586656. Its totient is φ = 81408.

The previous prime is 247811. The next prime is 247813. The reversal of 247812 is 218742.

247812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (247811) and next prime (247813).

It is a super-2 number, since 2×247812² = 122821574688, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247812.

It is not an unprimeable number, because it can be changed into a prime (247811) 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, 1188 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (24444).

2²⁴⁷⁸¹² is an apocalyptic number.

It is an amenable number.

247812 is an abundant number, since it is smaller than the sum of its proper divisors (338844).

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

247812 is a wasteful number, since it uses less digits than its factorization.

247812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 305 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 247812 is about 497.8071915913. The cubic root of 247812 is about 62.8117332398.

The spelling of 247812 in words is "two hundred forty-seven thousand, eight hundred twelve".