995667 has 4 divisors (see below), whose sum is σ = 1327560. Its totient is φ = 663776.

The previous prime is 995663. The next prime is 995669. The reversal of 995667 is 766599.

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 995667 - 2² = 995663 is a prime.

It is a D-number.

995667 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 995667.

It is not an unprimeable number, because it can be changed into a prime (995663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165942 + ... + 165947.

It is an arithmetic number, because the mean of its divisors is an integer number (331890).

2⁹⁹⁵⁶⁶⁷ is an apocalyptic number.

995667 is a deficient number, since it is larger than the sum of its proper divisors (331893).

995667 is a wasteful number, since it uses less digits than its factorization.

995667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331892.

The product of its digits is 102060, while the sum is 42.

The square root of 995667 is about 997.8311480406. The cubic root of 995667 is about 99.8553575532.

The spelling of 995667 in words is "nine hundred ninety-five thousand, six hundred sixty-seven".