999000983 has 8 divisors (see below), whose sum is σ = 1025178000. Its totient is φ = 972957888.

The previous prime is 999000967. The next prime is 999000991. The reversal of 999000983 is 389000999.

It is a happy number.

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 999000983 - 2⁴ = 999000967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999000953) 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, 18278 + ... + 48291.

It is an arithmetic number, because the mean of its divisors is an integer number (128147250).

Almost surely, 2^999000983 is an apocalyptic number.

999000983 is a deficient number, since it is larger than the sum of its proper divisors (26177017).

999000983 is a wasteful number, since it uses less digits than its factorization.

999000983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66961.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 999000983 is about 31606.9768089262. The cubic root of 999000983 is about 999.6668833790. Note that the first 3 decimals are identical.

The spelling of 999000983 in words is "nine hundred ninety-nine million, nine hundred eighty-three", and thus it is an aban number.