985669963 has 4 divisors (see below), whose sum is σ = 985925520. Its totient is φ = 985414408.

The previous prime is 985669961. The next prime is 985669967. The reversal of 985669963 is 369966589.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 985669963 - 2¹ = 985669961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985669961) 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, 121903 + ... + 129736.

It is an arithmetic number, because the mean of its divisors is an integer number (246481380).

Almost surely, 2^985669963 is an apocalyptic number.

985669963 is a deficient number, since it is larger than the sum of its proper divisors (255557).

985669963 is a wasteful number, since it uses less digits than its factorization.

985669963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255556.

The product of its digits is 18895680, while the sum is 61.

The square root of 985669963 is about 31395.3812367361. The cubic root of 985669963 is about 995.2003209375.

The spelling of 985669963 in words is "nine hundred eighty-five million, six hundred sixty-nine thousand, nine hundred sixty-three".