647713106 has 8 divisors (see below), whose sum is σ = 989901324. Its totient is φ = 317746000.

The previous prime is 647713091. The next prime is 647713109. The reversal of 647713106 is 601317746.

It can be written as a sum of positive squares in 2 ways, for example, as 644702881 + 3010225 = 25391^2 + 1735^2 .

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

It is not an unprimeable number, because it can be changed into a prime (647713109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055145 + ... + 3055356.

Almost surely, 2^647713106 is an apocalyptic number.

647713106 is a deficient number, since it is larger than the sum of its proper divisors (342188218).

647713106 is a wasteful number, since it uses less digits than its factorization.

647713106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110556.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 647713106 is about 25450.2083684987. The cubic root of 647713106 is about 865.2220156945. Note that the first 3 decimals are identical.

The spelling of 647713106 in words is "six hundred forty-seven million, seven hundred thirteen thousand, one hundred six".