647113 has 2 divisors, whose sum is σ = 647114. Its totient is φ = 647112.

The previous prime is 647111. The next prime is 647117. The reversal of 647113 is 311746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 2304 = 803^2 + 48^2 .

It is a cyclic number.

It is not a de Polignac number, because 647113 - 2¹ = 647111 is a prime.

Together with 647111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (647111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323556 + 323557.

It is an arithmetic number, because the mean of its divisors is an integer number (323557).

2⁶⁴⁷¹¹³ is an apocalyptic number.

It is an amenable number.

647113 is a deficient number, since it is larger than the sum of its proper divisors (1).

647113 is an equidigital number, since it uses as much as digits as its factorization.

647113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 647113 is about 804.4333409301. The cubic root of 647113 is about 86.4954723815.

Adding to 647113 its reverse (311746), we get a palindrome (958859).

The spelling of 647113 in words is "six hundred forty-seven thousand, one hundred thirteen".