647707214 has 16 divisors (see below), whose sum is σ = 1211296896. Its totient is φ = 252353400.

The previous prime is 647707213. The next prime is 647707219. The reversal of 647707214 is 412707746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647707213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102792 + ... + 2103099.

It is an arithmetic number, because the mean of its divisors is an integer number (75706056).

Almost surely, 2^647707214 is an apocalyptic number.

647707214 is a deficient number, since it is larger than the sum of its proper divisors (563589682).

647707214 is a wasteful number, since it uses less digits than its factorization.

647707214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205911.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 647707214 is about 25450.0926127981. The cubic root of 647707214 is about 865.2193921546.

The spelling of 647707214 in words is "six hundred forty-seven million, seven hundred seven thousand, two hundred fourteen".