909983 has 4 divisors (see below), whose sum is σ = 915600. Its totient is φ = 904368.

The previous prime is 909977. The next prime is 910003. The reversal of 909983 is 389909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 909983 - 2¹⁰ = 908959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 909983.

It is not an unprimeable number, because it can be changed into a prime (909973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558 + ... + 2891.

It is an arithmetic number, because the mean of its divisors is an integer number (228900).

2⁹⁰⁹⁹⁸³ is an apocalyptic number.

909983 is a deficient number, since it is larger than the sum of its proper divisors (5617).

909983 is a wasteful number, since it uses less digits than its factorization.

909983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 909983 is about 953.9302909542. The cubic root of 909983 is about 96.9046073915.

It can be divided in two parts, 90 and 9983, that multiplied together give a triangular number (898470 = T₁₃₄₀).

The spelling of 909983 in words is "nine hundred nine thousand, nine hundred eighty-three".