961863 has 16 divisors (see below), whose sum is σ = 1479936. Its totient is φ = 544320.

The previous prime is 961861. The next prime is 961871. The reversal of 961863 is 368169.

It is not a de Polignac number, because 961863 - 2¹ = 961861 is a prime.

961863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961861) 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, 3283 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (92496).

2⁹⁶¹⁸⁶³ is an apocalyptic number.

961863 is a deficient number, since it is larger than the sum of its proper divisors (518073).

961863 is a wasteful number, since it uses less digits than its factorization.

961863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its digits is 7776, while the sum is 33.

The square root of 961863 is about 980.7461445247. The cubic root of 961863 is about 98.7122549759.

The spelling of 961863 in words is "nine hundred sixty-one thousand, eight hundred sixty-three".