945985 has 8 divisors (see below), whose sum is σ = 1144296. Its totient is φ = 750720.

The previous prime is 945983. The next prime is 946003. The reversal of 945985 is 589549.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 839056 = 327^2 + 916^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 945985 - 2¹ = 945983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945983) 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 7 ways as a sum of consecutive naturals, for example, 6 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (143037).

2⁹⁴⁵⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

945985 is a deficient number, since it is larger than the sum of its proper divisors (198311).

945985 is a wasteful number, since it uses less digits than its factorization.

945985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 64800, while the sum is 40.

The square root of 945985 is about 972.6176021438. The cubic root of 945985 is about 98.1660727078.

The spelling of 945985 in words is "nine hundred forty-five thousand, nine hundred eighty-five".