961618 has 8 divisors (see below), whose sum is σ = 1648512. Its totient is φ = 412116.

The previous prime is 961613. The next prime is 961619. The reversal of 961618 is 816169.

It is a happy number.

961618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 961618.

It is not an unprimeable number, because it can be changed into a prime (961613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34330 + ... + 34357.

It is an arithmetic number, because the mean of its divisors is an integer number (206064).

2⁹⁶¹⁶¹⁸ is an apocalyptic number.

961618 is a deficient number, since it is larger than the sum of its proper divisors (686894).

961618 is a wasteful number, since it uses less digits than its factorization.

961618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68696.

The product of its digits is 2592, while the sum is 31.

The square root of 961618 is about 980.6212316690. The cubic root of 961618 is about 98.7038731321.

It can be divided in two parts, 96161 and 8, that added together give a palindrome (96169).

The spelling of 961618 in words is "nine hundred sixty-one thousand, six hundred eighteen".