647520011 has 8 divisors (see below), whose sum is σ = 665966448. Its totient is φ = 629200000.

The previous prime is 647519993. The next prime is 647520047. The reversal of 647520011 is 110025746.

647520011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 647520011 - 2²⁶ = 580411147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647520061) 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, 21170 + ... + 41751.

It is an arithmetic number, because the mean of its divisors is an integer number (83245806).

Almost surely, 2^647520011 is an apocalyptic number.

647520011 is a deficient number, since it is larger than the sum of its proper divisors (18446437).

647520011 is a wasteful number, since it uses less digits than its factorization.

647520011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63213.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 647520011 is about 25446.4145018507. The cubic root of 647520011 is about 865.1360277015.

Adding to 647520011 its reverse (110025746), we get a palindrome (757545757).

The spelling of 647520011 in words is "six hundred forty-seven million, five hundred twenty thousand, eleven".