247874 has 16 divisors (see below), whose sum is σ = 427680. Its totient is φ = 106560.

The previous prime is 247873. The next prime is 247879. The reversal of 247874 is 478742.

It is a super-2 number, since 2×247874² = 122883039752, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 247874.

It is not an unprimeable number, because it can be changed into a prime (247873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2²⁴⁷⁸⁷⁴ is an apocalyptic number.

247874 is a deficient number, since it is larger than the sum of its proper divisors (179806).

247874 is a wasteful number, since it uses less digits than its factorization.

247874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its digits is 12544, while the sum is 32.

The square root of 247874 is about 497.8694608027. The cubic root of 247874 is about 62.8169710851.

It can be divided in two parts, 2478 and 74, that added together give a palindrome (2552).

The spelling of 247874 in words is "two hundred forty-seven thousand, eight hundred seventy-four".