647068 has 12 divisors (see below), whose sum is σ = 1146600. Its totient is φ = 319472.

The previous prime is 647057. The next prime is 647069. The reversal of 647068 is 860746.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647069) 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 3 ways as a sum of consecutive naturals, for example, 643 + ... + 1306.

It is an arithmetic number, because the mean of its divisors is an integer number (95550).

2⁶⁴⁷⁰⁶⁸ is an apocalyptic number.

It is an amenable number.

647068 is a deficient number, since it is larger than the sum of its proper divisors (499532).

647068 is a wasteful number, since it uses less digits than its factorization.

647068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 647068 is about 804.4053704445. The cubic root of 647068 is about 86.4934673806.

It can be divided in two parts, 6 and 47068, that added together give a palindrome (47074).

The spelling of 647068 in words is "six hundred forty-seven thousand, sixty-eight".