247302263 has 6 divisors (see below), whose sum is σ = 267789024. Its totient is φ = 228278856.

The previous prime is 247302241. The next prime is 247302313. The reversal of 247302263 is 362203742.

It is not a de Polignac number, because 247302263 - 2¹⁸ = 247040119 is a prime.

It is a super-2 number, since 2×247302263² = 122316818569842338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247302563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 731495 + ... + 731832.

It is an arithmetic number, because the mean of its divisors is an integer number (44631504).

Almost surely, 2^247302263 is an apocalyptic number.

247302263 is a deficient number, since it is larger than the sum of its proper divisors (20486761).

247302263 is a wasteful number, since it uses less digits than its factorization.

247302263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463353 (or 1463340 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 247302263 is about 15725.8469724209. The cubic root of 247302263 is about 627.6863680332.

The spelling of 247302263 in words is "two hundred forty-seven million, three hundred two thousand, two hundred sixty-three".