383997 has 8 divisors (see below), whose sum is σ = 528640. Its totient is φ = 247680.

The previous prime is 383987. The next prime is 384001. The reversal of 383997 is 799383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 383997 - 2⁷ = 383869 is a prime.

It is a Duffinian number.

383997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383917) 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, 1972 + ... + 2157.

It is an arithmetic number, because the mean of its divisors is an integer number (66080).

2³⁸³⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

383997 is a deficient number, since it is larger than the sum of its proper divisors (144643).

383997 is a wasteful number, since it uses less digits than its factorization.

383997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

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

The square root of 383997 is about 619.6749147739. The cubic root of 383997 is about 72.6846344294.

The spelling of 383997 in words is "three hundred eighty-three thousand, nine hundred ninety-seven".