247283 has 4 divisors (see below), whose sum is σ = 255840. Its totient is φ = 238728.

The previous prime is 247279. The next prime is 247301. The reversal of 247283 is 382742.

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

It is not a de Polignac number, because 247283 - 2² = 247279 is a prime.

It is a super-2 number, since 2×247283² = 122297764178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247223) 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, 4235 + ... + 4292.

It is an arithmetic number, because the mean of its divisors is an integer number (63960).

2²⁴⁷²⁸³ is an apocalyptic number.

247283 is a deficient number, since it is larger than the sum of its proper divisors (8557).

247283 is an equidigital number, since it uses as much as digits as its factorization.

247283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556.

The product of its digits is 2688, while the sum is 26.

The square root of 247283 is about 497.2755775222. The cubic root of 247283 is about 62.7670070249.

The spelling of 247283 in words is "two hundred forty-seven thousand, two hundred eighty-three".