961851 has 8 divisors (see below), whose sum is σ = 1399104. Its totient is φ = 582920.

The previous prime is 961847. The next prime is 961853. The reversal of 961851 is 158169.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 961851 - 2² = 961847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14541 + ... + 14606.

It is an arithmetic number, because the mean of its divisors is an integer number (174888).

2⁹⁶¹⁸⁵¹ is an apocalyptic number.

961851 is a deficient number, since it is larger than the sum of its proper divisors (437253).

961851 is a wasteful number, since it uses less digits than its factorization.

961851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29161.

The product of its digits is 2160, while the sum is 30.

The square root of 961851 is about 980.7400267145. The cubic root of 961851 is about 98.7118444698.

It can be divided in two parts, 9618 and 51, that added together give a palindrome (9669).

The spelling of 961851 in words is "nine hundred sixty-one thousand, eight hundred fifty-one".