647011103 has 2 divisors, whose sum is σ = 647011104. Its totient is φ = 647011102.

The previous prime is 647011093. The next prime is 647011111. The reversal of 647011103 is 301110746.

647011103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 647011103 - 2⁶ = 647011039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647011903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323505551 + 323505552.

It is an arithmetic number, because the mean of its divisors is an integer number (323505552).

Almost surely, 2^647011103 is an apocalyptic number.

647011103 is a deficient number, since it is larger than the sum of its proper divisors (1).

647011103 is an equidigital number, since it uses as much as digits as its factorization.

647011103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 647011103 is about 25436.4129350032. The cubic root of 647011103 is about 864.9093216894.

Adding to 647011103 its reverse (301110746), we get a palindrome (948121849).

The spelling of 647011103 in words is "six hundred forty-seven million, eleven thousand, one hundred three".