247290 has 16 divisors (see below), whose sum is σ = 593568. Its totient is φ = 65936.

The previous prime is 247279. The next prime is 247301. The reversal of 247290 is 92742.

247290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (247279) and next prime (247301).

It is a super-2 number, since 2×247290² = 122304688200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4092 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (37098).

2²⁴⁷²⁹⁰ is an apocalyptic number.

247290 is an abundant number, since it is smaller than the sum of its proper divisors (346278).

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

247290 is a wasteful number, since it uses less digits than its factorization.

247290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 247290 is about 497.2826158232. The cubic root of 247290 is about 62.7675992814.

The spelling of 247290 in words is "two hundred forty-seven thousand, two hundred ninety".