961806 has 16 divisors (see below), whose sum is σ = 1986048. Its totient is φ = 310200.

The previous prime is 961789. The next prime is 961811. The reversal of 961806 is 608169.

It is an Ulam number.

It is a Curzon number.

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 961806.

It is an unprimeable 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, 2400 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (124128).

2⁹⁶¹⁸⁰⁶ is an apocalyptic number.

961806 is an abundant number, since it is smaller than the sum of its proper divisors (1024242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961806 is a wasteful number, since it uses less digits than its factorization.

961806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 961806 is about 980.7170845866. The cubic root of 961806 is about 98.7103050414.

The spelling of 961806 in words is "nine hundred sixty-one thousand, eight hundred six".