945686 has 16 divisors (see below), whose sum is σ = 1674240. Its totient is φ = 392040.

The previous prime is 945677. The next prime is 945701. The reversal of 945686 is 686549.

It is a congruent number.

It is an unprimeable number.

945686 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 656 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (104640).

2⁹⁴⁵⁶⁸⁶ is an apocalyptic number.

945686 is a deficient number, since it is larger than the sum of its proper divisors (728554).

945686 is a wasteful number, since it uses less digits than its factorization.

945686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its digits is 51840, while the sum is 38.

The square root of 945686 is about 972.4638810773. The cubic root of 945686 is about 98.1557290805.

The spelling of 945686 in words is "nine hundred forty-five thousand, six hundred eighty-six".