995819 has 4 divisors (see below), whose sum is σ = 1086360. Its totient is φ = 905280.

The previous prime is 995801. The next prime is 995833. The reversal of 995819 is 918599.

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

It is a cyclic number.

It is not a de Polignac number, because 995819 - 2¹² = 991723 is a prime.

It is a super-2 number, since 2×995819² = 1983310961522, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 995819.

It is not an unprimeable number, because it can be changed into a prime (995119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45254 + ... + 45275.

It is an arithmetic number, because the mean of its divisors is an integer number (271590).

2⁹⁹⁵⁸¹⁹ is an apocalyptic number.

995819 is a deficient number, since it is larger than the sum of its proper divisors (90541).

995819 is a wasteful number, since it uses less digits than its factorization.

995819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90540.

The product of its digits is 29160, while the sum is 41.

The square root of 995819 is about 997.9073103250. The cubic root of 995819 is about 99.8604386502.

It can be divided in two parts, 99 and 5819, that multiplied together give a square (576081 = 759²).

The spelling of 995819 in words is "nine hundred ninety-five thousand, eight hundred nineteen".