247013263 has 6 divisors (see below), whose sum is σ = 287342016. Its totient is φ = 211725612.

The previous prime is 247013257. The next prime is 247013267. The reversal of 247013263 is 362310742.

It is not a de Polignac number, because 247013263 - 2¹³ = 247005071 is a prime.

It is a super-2 number, since 2×247013263² = 122031104195814338, 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 (247013267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2520495 + ... + 2520592.

It is an arithmetic number, because the mean of its divisors is an integer number (47890336).

Almost surely, 2^247013263 is an apocalyptic number.

247013263 is a deficient number, since it is larger than the sum of its proper divisors (40328753).

247013263 is an equidigital number, since it uses as much as digits as its factorization.

247013263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041101 (or 5041094 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 247013263 is about 15716.6555920781. The cubic root of 247013263 is about 627.4417657846.

The spelling of 247013263 in words is "two hundred forty-seven million, thirteen thousand, two hundred sixty-three".