247272713 has 4 divisors (see below), whose sum is σ = 249541380. Its totient is φ = 245004048.

The previous prime is 247272703. The next prime is 247272721. The reversal of 247272713 is 317272742.

247272713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 181387024 + 65885689 = 13468^2 + 8117^2 .

It is a cyclic number.

It is not a de Polignac number, because 247272713 - 2²⁰ = 246224137 is a prime.

It is a super-2 number, since 2×247272713² = 122287589188760738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247272703) 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, 1134170 + ... + 1134387.

It is an arithmetic number, because the mean of its divisors is an integer number (62385345).

Almost surely, 2^247272713 is an apocalyptic number.

It is an amenable number.

247272713 is a deficient number, since it is larger than the sum of its proper divisors (2268667).

247272713 is a wasteful number, since it uses less digits than its factorization.

247272713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268666.

The product of its digits is 32928, while the sum is 35.

The square root of 247272713 is about 15724.9074083125. The cubic root of 247272713 is about 627.6613664140.

The spelling of 247272713 in words is "two hundred forty-seven million, two hundred seventy-two thousand, seven hundred thirteen".