747385813 has 2 divisors, whose sum is σ = 747385814. Its totient is φ = 747385812.

The previous prime is 747385811. The next prime is 747385901. The reversal of 747385813 is 318583747.

747385813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 706655889 + 40729924 = 26583^2 + 6382^2 .

It is a cyclic number.

It is not a de Polignac number, because 747385813 - 2¹ = 747385811 is a prime.

Together with 747385811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747385811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373692906 + 373692907.

It is an arithmetic number, because the mean of its divisors is an integer number (373692907).

Almost surely, 2^747385813 is an apocalyptic number.

It is an amenable number.

747385813 is a deficient number, since it is larger than the sum of its proper divisors (1).

747385813 is an equidigital number, since it uses as much as digits as its factorization.

747385813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 46.

The square root of 747385813 is about 27338.3579060630. The cubic root of 747385813 is about 907.5034468776.

The spelling of 747385813 in words is "seven hundred forty-seven million, three hundred eighty-five thousand, eight hundred thirteen".