1990833 has 8 divisors (see below), whose sum is σ = 2858688. Its totient is φ = 1225104.

The previous prime is 1990831. The next prime is 1990867. The reversal of 1990833 is 3380991.

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

It is not a de Polignac number, because 1990833 - 2¹ = 1990831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1990794 and 1990803.

It is not an unprimeable number, because it can be changed into a prime (1990831) 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, 25485 + ... + 25562.

It is an arithmetic number, because the mean of its divisors is an integer number (357336).

2^1990833 is an apocalyptic number.

1990833 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1990833 is a deficient number, since it is larger than the sum of its proper divisors (867855).

1990833 is a wasteful number, since it uses less digits than its factorization.

1990833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51063.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1990833 is about 1410.9688160976. The cubic root of 1990833 is about 125.7993152004.

The spelling of 1990833 in words is "one million, nine hundred ninety thousand, eight hundred thirty-three".