9896886731 has 2 divisors, whose sum is σ = 9896886732. Its totient is φ = 9896886730.

The previous prime is 9896886691. The next prime is 9896886739. The reversal of 9896886731 is 1376886989.

9896886731 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 a de Polignac number, because none of the positive numbers 2^k-9896886731 is a prime.

It is a super-2 number, since 2×9896886731² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9896886739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948443365 + 4948443366.

It is an arithmetic number, because the mean of its divisors is an integer number (4948443366).

Almost surely, 2^9896886731 is an apocalyptic number.

9896886731 is a deficient number, since it is larger than the sum of its proper divisors (1).

9896886731 is an equidigital number, since it uses as much as digits as its factorization.

9896886731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 65.

The square root of 9896886731 is about 99483.0977151395. The cubic root of 9896886731 is about 2147.0040645453.

The spelling of 9896886731 in words is "nine billion, eight hundred ninety-six million, eight hundred eighty-six thousand, seven hundred thirty-one".