997833 has 4 divisors (see below), whose sum is σ = 1330448. Its totient is φ = 665220.

The previous prime is 997813. The next prime is 997877. The reversal of 997833 is 338799.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 997833 - 2⁶ = 997769 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 997791 and 997800.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 997833.

It is not an unprimeable number, because it can be changed into a prime (997813) 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, 166303 + ... + 166308.

It is an arithmetic number, because the mean of its divisors is an integer number (332612).

2⁹⁹⁷⁸³³ is an apocalyptic number.

It is an amenable number.

997833 is a deficient number, since it is larger than the sum of its proper divisors (332615).

997833 is a wasteful number, since it uses less digits than its factorization.

997833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332614.

The product of its digits is 40824, while the sum is 39.

The square root of 997833 is about 998.9159123770. The cubic root of 997833 is about 99.9277144272.

It can be divided in two parts, 9978 and 33, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 997833 in words is "nine hundred ninety-seven thousand, eight hundred thirty-three".