247303 has 10 divisors (see below), whose sum is σ = 291304. Its totient is φ = 209916.

The previous prime is 247301. The next prime is 247309. The reversal of 247303 is 303742.

247303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247303 - 2¹ = 247301 is a prime.

It is a super-2 number, since 2×247303² = 122317547618, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 4⁸ + 3⁷ + 7⁴ + 0 + 3¹¹ .

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a zygodrome in base 2.

It is a congruent number.

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

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2350 + ... + 2452.

2²⁴⁷³⁰³ is an apocalyptic number.

247303 is a deficient number, since it is larger than the sum of its proper divisors (44001).

247303 is an frugal number, since it uses more digits than its factorization.

247303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 247303 is about 497.2956866895. The cubic root of 247303 is about 62.7686991568.

The spelling of 247303 in words is "two hundred forty-seven thousand, three hundred three", and thus it is an iban number.