247302713 has 4 divisors (see below), whose sum is σ = 282631680. Its totient is φ = 211973748.

The previous prime is 247302703. The next prime is 247302719. The reversal of 247302713 is 317203742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 247302713 - 2⁸ = 247302457 is a prime.

It is a super-2 number, since 2×247302713² = 122317263714320738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247302719) 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, 17664473 + ... + 17664486.

It is an arithmetic number, because the mean of its divisors is an integer number (70657920).

Almost surely, 2^247302713 is an apocalyptic number.

It is an amenable number.

247302713 is a deficient number, since it is larger than the sum of its proper divisors (35328967).

247302713 is an equidigital number, since it uses as much as digits as its factorization.

247302713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35328966.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 247302713 is about 15725.8612800698. The cubic root of 247302713 is about 627.6867487531.

The spelling of 247302713 in words is "two hundred forty-seven million, three hundred two thousand, seven hundred thirteen".