949809 has 16 divisors (see below), whose sum is σ = 1495040. Its totient is φ = 524880.

The previous prime is 949789. The next prime is 949811. The reversal of 949809 is 908949.

It is not a de Polignac number, because 949809 - 2⁵ = 949777 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 949809.

It is not an unprimeable number, because it can be changed into a prime (949849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (93440).

2⁹⁴⁹⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

949809 is a deficient number, since it is larger than the sum of its proper divisors (545231).

949809 is a wasteful number, since it uses less digits than its factorization.

949809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 949809 is about 974.5814486229. The cubic root of 949809 is about 98.2981686642.

The spelling of 949809 in words is "nine hundred forty-nine thousand, eight hundred nine".