647013 has 8 divisors (see below), whose sum is σ = 900288. Its totient is φ = 412544.

The previous prime is 647011. The next prime is 647033. The reversal of 647013 is 310746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 647013 - 2¹ = 647011 is a prime.

647013 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647011) 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 in 7 ways as a sum of consecutive naturals, for example, 4620 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (112536).

2⁶⁴⁷⁰¹³ is an apocalyptic number.

It is an amenable number.

647013 is a deficient number, since it is larger than the sum of its proper divisors (253275).

647013 is a wasteful number, since it uses less digits than its factorization.

647013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 647013 is about 804.3711829746. The cubic root of 647013 is about 86.4910166977.

Adding to 647013 its reverse (310746), we get a palindrome (957759).

The spelling of 647013 in words is "six hundred forty-seven thousand, thirteen".