986159899 has 4 divisors (see below), whose sum is σ = 986224536. Its totient is φ = 986095264.

The previous prime is 986159887. The next prime is 986159917. The reversal of 986159899 is 998951689.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 986159899 - 2⁷ = 986159771 is a prime.

It is a super-2 number, since 2×986159899² = 1945022692791380402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 986159899.

It is not an unprimeable number, because it can be changed into a prime (986159809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4707 + ... + 44659.

It is an arithmetic number, because the mean of its divisors is an integer number (246556134).

Almost surely, 2^986159899 is an apocalyptic number.

986159899 is a deficient number, since it is larger than the sum of its proper divisors (64637).

986159899 is a wasteful number, since it uses less digits than its factorization.

986159899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64636.

The product of its digits is 12597120, while the sum is 64.

The square root of 986159899 is about 31403.1829437718. The cubic root of 986159899 is about 995.3651846745.

The spelling of 986159899 in words is "nine hundred eighty-six million, one hundred fifty-nine thousand, eight hundred ninety-nine".