997694 has 16 divisors (see below), whose sum is σ = 1602720. Its totient is φ = 465520.

The previous prime is 997693. The next prime is 997699. The reversal of 997694 is 496799.

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 997694.

It is not an unprimeable number, because it can be changed into a prime (997693) 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, 24314 + ... + 24354.

It is an arithmetic number, because the mean of its divisors is an integer number (100170).

2⁹⁹⁷⁶⁹⁴ is an apocalyptic number.

997694 is a deficient number, since it is larger than the sum of its proper divisors (605026).

997694 is an equidigital number, since it uses as much as digits as its factorization.

997694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 66 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 997694 is about 998.8463345280. The cubic root of 997694 is about 99.9230741727.

The spelling of 997694 in words is "nine hundred ninety-seven thousand, six hundred ninety-four".