945805 has 16 divisors (see below), whose sum is σ = 1321344. Its totient is φ = 636480.

The previous prime is 945799. The next prime is 945809. The reversal of 945805 is 508549.

It is not a de Polignac number, because 945805 - 2⁷ = 945677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945809) 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, 1914 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (82584).

2⁹⁴⁵⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

945805 is a deficient number, since it is larger than the sum of its proper divisors (375539).

945805 is a wasteful number, since it uses less digits than its factorization.

945805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 945805 is about 972.5250639444. The cubic root of 945805 is about 98.1598460362.

The spelling of 945805 in words is "nine hundred forty-five thousand, eight hundred five".