997795 has 4 divisors (see below), whose sum is σ = 1197360. Its totient is φ = 798232.

The previous prime is 997793. The next prime is 997807. The reversal of 997795 is 597799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 597799 = 263 ⋅2273.

It is a cyclic number.

It is not a de Polignac number, because 997795 - 2¹ = 997793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997793) 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, 99775 + ... + 99784.

It is an arithmetic number, because the mean of its divisors is an integer number (299340).

2⁹⁹⁷⁷⁹⁵ is an apocalyptic number.

997795 is a deficient number, since it is larger than the sum of its proper divisors (199565).

997795 is a wasteful number, since it uses less digits than its factorization.

997795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199564.

The product of its digits is 178605, while the sum is 46.

The square root of 997795 is about 998.8968915759. The cubic root of 997795 is about 99.9264459112.

The spelling of 997795 in words is "nine hundred ninety-seven thousand, seven hundred ninety-five".