247308 has 24 divisors (see below), whose sum is σ = 593712. Its totient is φ = 80064.

The previous prime is 247301. The next prime is 247309. The reversal of 247308 is 803742.

It is a super-2 number, since 2×247308² = 122322493728, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (247301) by changing a digit.

247308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (24738).

2²⁴⁷³⁰⁸ is an apocalyptic number.

It is an amenable number.

247308 is an abundant number, since it is smaller than the sum of its proper divisors (346404).

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

247308 is a wasteful number, since it uses less digits than its factorization.

247308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 247308 is about 497.3007138543. The cubic root of 247308 is about 62.7691221755.

It can be divided in two parts, 247 and 308, that added together give a palindrome (555).

The spelling of 247308 in words is "two hundred forty-seven thousand, three hundred eight".