997235 has 4 divisors (see below), whose sum is σ = 1196688. Its totient is φ = 797784.

The previous prime is 997219. The next prime is 997247. The reversal of 997235 is 532799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532799 = 677 ⋅787.

It is a cyclic number.

It is not a de Polignac number, because 997235 - 2⁴ = 997219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 997195 and 997204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99719 + ... + 99728.

It is an arithmetic number, because the mean of its divisors is an integer number (299172).

2⁹⁹⁷²³⁵ is an apocalyptic number.

997235 is a deficient number, since it is larger than the sum of its proper divisors (199453).

997235 is a wasteful number, since it uses less digits than its factorization.

997235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199452.

The product of its digits is 17010, while the sum is 35.

The square root of 997235 is about 998.6165430234. The cubic root of 997235 is about 99.9077482557.

The spelling of 997235 in words is "nine hundred ninety-seven thousand, two hundred thirty-five".