247854 has 16 divisors (see below), whose sum is σ = 501840. Its totient is φ = 81600.

The previous prime is 247853. The next prime is 247873. The reversal of 247854 is 458742.

247854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247854² = 122863210632, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247853) 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, 402 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (31365).

2²⁴⁷⁸⁵⁴ is an apocalyptic number.

247854 is an abundant number, since it is smaller than the sum of its proper divisors (253986).

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

247854 is a wasteful number, since it uses less digits than its factorization.

247854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its digits is 8960, while the sum is 30.

The square root of 247854 is about 497.8493748113. The cubic root of 247854 is about 62.8152815530.

The spelling of 247854 in words is "two hundred forty-seven thousand, eight hundred fifty-four".