247707013 has 2 divisors, whose sum is σ = 247707014. Its totient is φ = 247707012.

The previous prime is 247707011. The next prime is 247707043. The reversal of 247707013 is 310707742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163379524 + 84327489 = 12782^2 + 9183^2 .

It is a cyclic number.

It is not a de Polignac number, because 247707013 - 2¹ = 247707011 is a prime.

It is a super-2 number, since 2×247707013² = 122717528578764338, which contains 22 as substring.

Together with 247707011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247707011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123853506 + 123853507.

It is an arithmetic number, because the mean of its divisors is an integer number (123853507).

Almost surely, 2^247707013 is an apocalyptic number.

It is an amenable number.

247707013 is a deficient number, since it is larger than the sum of its proper divisors (1).

247707013 is an equidigital number, since it uses as much as digits as its factorization.

247707013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 247707013 is about 15738.7106524010. The cubic root of 247707013 is about 628.0286180110.

The spelling of 247707013 in words is "two hundred forty-seven million, seven hundred seven thousand, thirteen".