247459 has 4 divisors (see below), whose sum is σ = 249480. Its totient is φ = 245440.

The previous prime is 247451. The next prime is 247463. The reversal of 247459 is 954742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247459 - 2³ = 247451 is a prime.

It is a super-2 number, since 2×247459² = 122471913362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247459.

It is not an unprimeable number, because it can be changed into a prime (247451) 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, 814 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (62370).

2²⁴⁷⁴⁵⁹ is an apocalyptic number.

247459 is a deficient number, since it is larger than the sum of its proper divisors (2021).

247459 is a wasteful number, since it uses less digits than its factorization.

247459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its digits is 10080, while the sum is 31.

The square root of 247459 is about 497.4525102962. The cubic root of 247459 is about 62.7818946549.

The spelling of 247459 in words is "two hundred forty-seven thousand, four hundred fifty-nine".