997383 has 4 divisors (see below), whose sum is σ = 1329848. Its totient is φ = 664920.

The previous prime is 997379. The next prime is 997391. The reversal of 997383 is 383799.

It is a happy number.

997383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 997383 - 2² = 997379 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

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 997383.

It is not an unprimeable number, because it can be changed into a prime (997333) 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, 166228 + ... + 166233.

It is an arithmetic number, because the mean of its divisors is an integer number (332462).

2⁹⁹⁷³⁸³ is an apocalyptic number.

997383 is a deficient number, since it is larger than the sum of its proper divisors (332465).

997383 is a wasteful number, since it uses less digits than its factorization.

997383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332464.

The product of its digits is 40824, while the sum is 39.

The square root of 997383 is about 998.6906427919. The cubic root of 997383 is about 99.9126904593.

The spelling of 997383 in words is "nine hundred ninety-seven thousand, three hundred eighty-three".