997594 has 32 divisors (see below), whose sum is σ = 1781136. Its totient is φ = 414720.

The previous prime is 997589. The next prime is 997597. The reversal of 997594 is 495799.

It can be written as a sum of positive squares in 8 ways, for example, as 378225 + 619369 = 615^2 + 787^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 997594.

It is not an unprimeable number, because it can be changed into a prime (997597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16324 + ... + 16384.

2⁹⁹⁷⁵⁹⁴ is an apocalyptic number.

997594 is a deficient number, since it is larger than the sum of its proper divisors (783542).

997594 is a wasteful number, since it uses less digits than its factorization.

997594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130.

The product of its digits is 102060, while the sum is 43.

The square root of 997594 is about 998.7962755237. The cubic root of 997594 is about 99.9197355935.

The spelling of 997594 in words is "nine hundred ninety-seven thousand, five hundred ninety-four".