647652795 has 16 divisors (see below), whose sum is σ = 1071977760. Its totient is φ = 333503744.

The previous prime is 647652793. The next prime is 647652857. The reversal of 647652795 is 597256746.

It is a cyclic number.

It is not a de Polignac number, because 647652795 - 2¹ = 647652793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647652793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743994 + ... + 744863.

It is an arithmetic number, because the mean of its divisors is an integer number (66998610).

Almost surely, 2^647652795 is an apocalyptic number.

647652795 is a deficient number, since it is larger than the sum of its proper divisors (424324965).

647652795 is a wasteful number, since it uses less digits than its factorization.

647652795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488894.

The product of its digits is 3175200, while the sum is 51.

The square root of 647652795 is about 25449.0234586713. The cubic root of 647652795 is about 865.1951601704.

The spelling of 647652795 in words is "six hundred forty-seven million, six hundred fifty-two thousand, seven hundred ninety-five".