945909 has 12 divisors (see below), whose sum is σ = 1375296. Its totient is φ = 626472.

The previous prime is 945907. The next prime is 945929. The reversal of 945909 is 909549.

It is not a de Polignac number, because 945909 - 2¹ = 945907 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 945909.

It is not an unprimeable number, because it can be changed into a prime (945907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1812 + ... + 2274.

It is an arithmetic number, because the mean of its divisors is an integer number (114608).

2⁹⁴⁵⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

945909 is a deficient number, since it is larger than the sum of its proper divisors (429387).

945909 is a wasteful number, since it uses less digits than its factorization.

945909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 945909 is about 972.5785315336. The cubic root of 945909 is about 98.1634437650.

The spelling of 945909 in words is "nine hundred forty-five thousand, nine hundred nine".