247959 has 6 divisors (see below), whose sum is σ = 358176. Its totient is φ = 165300.

The previous prime is 247957. The next prime is 247991. The reversal of 247959 is 959742.

It is not a de Polignac number, because 247959 - 2¹ = 247957 is a prime.

It is a super-2 number, since 2×247959² = 122967331362, which contains 22 as substring.

It is an Ulam number.

247959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13767 + ... + 13784.

It is an arithmetic number, because the mean of its divisors is an integer number (59696).

2²⁴⁷⁹⁵⁹ is an apocalyptic number.

247959 is a deficient number, since it is larger than the sum of its proper divisors (110217).

247959 is a wasteful number, since it uses less digits than its factorization.

247959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27557 (or 27554 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 247959 is about 497.9548172274. The cubic root of 247959 is about 62.8241505826.

It can be divided in two parts, 2 and 47959, that added together give a square (47961 = 219²).

The spelling of 247959 in words is "two hundred forty-seven thousand, nine hundred fifty-nine".