8387697013 has 2 divisors, whose sum is σ = 8387697014. Its totient is φ = 8387697012.

The previous prime is 8387696959. The next prime is 8387697029. The reversal of 8387697013 is 3107967838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8234110564 + 153586449 = 90742^2 + 12393^2 .

It is a cyclic number.

It is not a de Polignac number, because 8387697013 - 2²⁵ = 8354142581 is a prime.

It is a super-2 number, since 2×8387697013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8387697313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4193848506 + 4193848507.

It is an arithmetic number, because the mean of its divisors is an integer number (4193848507).

Almost surely, 2^8387697013 is an apocalyptic number.

It is an amenable number.

8387697013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8387697013 is an equidigital number, since it uses as much as digits as its factorization.

8387697013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 8387697013 is about 91584.3710083768. The cubic root of 8387697013 is about 2031.7997913194.

The spelling of 8387697013 in words is "eight billion, three hundred eighty-seven million, six hundred ninety-seven thousand, thirteen".