263313713 has 4 divisors (see below), whose sum is σ = 283568628. Its totient is φ = 243058800.

The previous prime is 263313703. The next prime is 263313727. The reversal of 263313713 is 317313362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32638369 + 230675344 = 5713^2 + 15188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263313713 is a prime.

It is a super-2 number, since 2×263313713² = 138668222907692738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263313703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10127438 + ... + 10127463.

It is an arithmetic number, because the mean of its divisors is an integer number (70892157).

Almost surely, 2^263313713 is an apocalyptic number.

It is an amenable number.

263313713 is a deficient number, since it is larger than the sum of its proper divisors (20254915).

263313713 is a wasteful number, since it uses less digits than its factorization.

263313713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254914.

The product of its digits is 6804, while the sum is 29.

The square root of 263313713 is about 16226.9440437810. The cubic root of 263313713 is about 640.9505025289.

The spelling of 263313713 in words is "two hundred sixty-three million, three hundred thirteen thousand, seven hundred thirteen".