8387134733 has 2 divisors, whose sum is σ = 8387134734. Its totient is φ = 8387134732.

The previous prime is 8387134727. The next prime is 8387134751. The reversal of 8387134733 is 3374317838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7764781924 + 622352809 = 88118^2 + 24947^2 .

It is a cyclic number.

It is not a de Polignac number, because 8387134733 - 2¹² = 8387130637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8387134333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4193567366 + 4193567367.

It is an arithmetic number, because the mean of its divisors is an integer number (4193567367).

Almost surely, 2^8387134733 is an apocalyptic number.

It is an amenable number.

8387134733 is a deficient number, since it is larger than the sum of its proper divisors (1).

8387134733 is an equidigital number, since it uses as much as digits as its factorization.

8387134733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 8387134733 is about 91581.3012191899. The cubic root of 8387134733 is about 2031.7543888721.

The spelling of 8387134733 in words is "eight billion, three hundred eighty-seven million, one hundred thirty-four thousand, seven hundred thirty-three".