995997 has 4 divisors (see below), whose sum is σ = 1328000. Its totient is φ = 663996.

The previous prime is 995989. The next prime is 996001. The reversal of 995997 is 799599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 995997 - 2³ = 995989 is a prime.

It is a D-number.

It is a Duffinian number.

995997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (995927) 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, 165997 + ... + 166002.

It is an arithmetic number, because the mean of its divisors is an integer number (332000).

2⁹⁹⁵⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

995997 is a deficient number, since it is larger than the sum of its proper divisors (332003).

995997 is a wasteful number, since it uses less digits than its factorization.

995997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332002.

The product of its digits is 229635, while the sum is 48.

The square root of 995997 is about 997.9964929798. The cubic root of 995997 is about 99.8663882251.

The spelling of 995997 in words is "nine hundred ninety-five thousand, nine hundred ninety-seven".