997516 has 12 divisors (see below), whose sum is σ = 1880032. Its totient is φ = 460368.

The previous prime is 997511. The next prime is 997541. The reversal of 997516 is 615799.

997516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (997511) 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, 9540 + ... + 9643.

2⁹⁹⁷⁵¹⁶ is an apocalyptic number.

It is an amenable number.

997516 is a deficient number, since it is larger than the sum of its proper divisors (882516).

997516 is a wasteful number, since it uses less digits than its factorization.

997516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19200 (or 19198 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 997516 is about 998.7572277586. The cubic root of 997516 is about 99.9171313468.

The spelling of 997516 in words is "nine hundred ninety-seven thousand, five hundred sixteen".