647950 has 12 divisors (see below), whose sum is σ = 1205280. Its totient is φ = 259160.

The previous prime is 647917. The next prime is 647951. The reversal of 647950 is 59746.

647950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6430 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2⁶⁴⁷⁹⁵⁰ is an apocalyptic number.

647950 is a deficient number, since it is larger than the sum of its proper divisors (557330).

647950 is a wasteful number, since it uses less digits than its factorization.

647950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971 (or 12966 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 647950 is about 804.9534148011. The cubic root of 647950 is about 86.5327484674.

The spelling of 647950 in words is "six hundred forty-seven thousand, nine hundred fifty".