647116 has 6 divisors (see below), whose sum is σ = 1132460. Its totient is φ = 323556.

The previous prime is 647113. The next prime is 647117. The reversal of 647116 is 611746.

It is a happy number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a 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, 80886 + ... + 80893.

2⁶⁴⁷¹¹⁶ is an apocalyptic number.

It is an amenable number.

647116 is a deficient number, since it is larger than the sum of its proper divisors (485344).

647116 is a wasteful number, since it uses less digits than its factorization.

647116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161783 (or 161781 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 647116 is about 804.4352055946. The cubic root of 647116 is about 86.4956060450.

The spelling of 647116 in words is "six hundred forty-seven thousand, one hundred sixteen".