997935 has 8 divisors (see below), whose sum is σ = 1596720. Its totient is φ = 532224.

The previous prime is 997933. The next prime is 997949. The reversal of 997935 is 539799.

It is a happy number.

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

It is not a de Polignac number, because 997935 - 2¹ = 997933 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997933) 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 7 ways as a sum of consecutive naturals, for example, 33250 + ... + 33279.

It is an arithmetic number, because the mean of its divisors is an integer number (199590).

2⁹⁹⁷⁹³⁵ is an apocalyptic number.

997935 is a deficient number, since it is larger than the sum of its proper divisors (598785).

997935 is a wasteful number, since it uses less digits than its factorization.

997935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66537.

The product of its digits is 76545, while the sum is 42.

The square root of 997935 is about 998.9669664208. The cubic root of 997935 is about 99.9311192320.

The spelling of 997935 in words is "nine hundred ninety-seven thousand, nine hundred thirty-five".