997340 has 24 divisors (see below), whose sum is σ = 2140992. Its totient is φ = 390080.

The previous prime is 997333. The next prime is 997343. The reversal of 997340 is 43799.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 997297 and 997306.

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 997340.

It is not an unprimeable number, because it can be changed into a prime (997343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410 + ... + 1470.

It is an arithmetic number, because the mean of its divisors is an integer number (89208).

2⁹⁹⁷³⁴⁰ is an apocalyptic number.

It is an amenable number.

997340 is an abundant number, since it is smaller than the sum of its proper divisors (1143652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997340 is a wasteful number, since it uses less digits than its factorization.

997340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 997340 is about 998.6691143717. The cubic root of 997340 is about 99.9112545992.

The spelling of 997340 in words is "nine hundred ninety-seven thousand, three hundred forty".