995331 has 4 divisors (see below), whose sum is σ = 1327112.
Its totient is φ = 663552.
The previous prime is 995329. The next prime is 995339. The reversal of 995331 is 133599.
It can be divided in two parts, 995 and 331, that added together give a triangular number (1326 = T51).
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133599 = 3 ⋅44533.
It is not a de Polignac number, because 995331 - 21 = 995329 is a prime.
It is a super-2 number, since 2×9953312 = 1981367599122, which contains 22 as substring.
It is a D-number.
It is a Duffinian number.
It is a nialpdrome in base 10.
It is a zygodrome in base 2.
It is not an unprimeable number, because it can be changed into a prime (995339) 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, 165886 + ... + 165891.
It is an arithmetic number, because the mean of its divisors is an integer number (331778).
995331 is a Friedman number, since it can be written as (9+(9+3)^(5+1))/3, using all its digits and the basic arithmetic operations.
2995331 is an apocalyptic number.
995331 is a deficient number, since it is larger than the sum of its proper divisors (331781).
995331 is a wasteful number, since it uses less digits than its factorization.
995331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 331780.
The product of its digits is 3645, while the sum is 30.
The square root of 995331 is about 997.6627686749.
The cubic root of 995331 is about 99.8441238191.
The spelling of 995331 in words is "nine hundred ninety-five thousand, three hundred thirty-one".