998000000807 has 2 divisors, whose sum is σ = 998000000808. Its totient is φ = 998000000806.

The previous prime is 998000000801. The next prime is 998000000887. The reversal of 998000000807 is 708000000899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998000000807 - 2⁴ = 998000000791 is a prime.

It is a super-2 number, since 2×998000000807² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998000000801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499000000403 + 499000000404.

It is an arithmetic number, because the mean of its divisors is an integer number (499000000404).

Almost surely, 2^998000000807 is an apocalyptic number.

998000000807 is a deficient number, since it is larger than the sum of its proper divisors (1).

998000000807 is an equidigital number, since it uses as much as digits as its factorization.

998000000807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 998000000807 in words is "nine hundred ninety-eight billion, eight hundred seven", and thus it is an aban number.