647433011 has 4 divisors (see below), whose sum is σ = 647485800. Its totient is φ = 647380224.

The previous prime is 647432987. The next prime is 647433043. The reversal of 647433011 is 110334746.

647433011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 110334746 = 2 ⋅55167373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-647433011 is a prime.

It is a super-2 number, since 2×647433011² = 838339007465052242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647433071) 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, 2675 + ... + 36083.

It is an arithmetic number, because the mean of its divisors is an integer number (161871450).

Almost surely, 2^647433011 is an apocalyptic number.

647433011 is a deficient number, since it is larger than the sum of its proper divisors (52789).

647433011 is a wasteful number, since it uses less digits than its factorization.

647433011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52788.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 647433011 is about 25444.7049697968. The cubic root of 647433011 is about 865.0972797584.

Adding to 647433011 its reverse (110334746), we get a palindrome (757767757).

The spelling of 647433011 in words is "six hundred forty-seven million, four hundred thirty-three thousand, eleven".