981000899 has 8 divisors (see below), whose sum is σ = 1024008480. Its totient is φ = 938022976.

The previous prime is 981000883. The next prime is 981000941. The reversal of 981000899 is 998000189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981000899 - 2⁴ = 981000883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981000829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84647 + ... + 95535.

It is an arithmetic number, because the mean of its divisors is an integer number (128001060).

Almost surely, 2^981000899 is an apocalyptic number.

981000899 is a deficient number, since it is larger than the sum of its proper divisors (43007581).

981000899 is a wasteful number, since it uses less digits than its factorization.

981000899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14829.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 981000899 is about 31320.9338781589. The cubic root of 981000899 is about 993.6264302451.

The spelling of 981000899 in words is "nine hundred eighty-one million, eight hundred ninety-nine", and thus it is an aban number.