985618 has 8 divisors (see below), whose sum is σ = 1483020. Its totient is φ = 491280.

The previous prime is 985613. The next prime is 985631. The reversal of 985618 is 816589.

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 11449 = 987^2 + 107^2 .

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 not an unprimeable number, because it can be changed into a prime (985613) 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, 388 + ... + 1456.

2⁹⁸⁵⁶¹⁸ is an apocalyptic number.

985618 is a deficient number, since it is larger than the sum of its proper divisors (497402).

985618 is a wasteful number, since it uses less digits than its factorization.

985618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532.

The product of its digits is 17280, while the sum is 37.

The square root of 985618 is about 992.7829571462. The cubic root of 985618 is about 99.5182832155.

It can be divided in two parts, 98 and 5618, that multiplied together give a square (550564 = 742²).

The spelling of 985618 in words is "nine hundred eighty-five thousand, six hundred eighteen".