986955863 has 4 divisors (see below), whose sum is σ = 987051408. Its totient is φ = 986860320.

The previous prime is 986955847. The next prime is 986955901. The reversal of 986955863 is 368559689.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 986955863 - 2⁴ = 986955847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986955833) 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, 30098 + ... + 53663.

It is an arithmetic number, because the mean of its divisors is an integer number (246762852).

Almost surely, 2^986955863 is an apocalyptic number.

986955863 is a deficient number, since it is larger than the sum of its proper divisors (95545).

986955863 is a wasteful number, since it uses less digits than its factorization.

986955863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95544.

The product of its digits is 13996800, while the sum is 59.

The square root of 986955863 is about 31415.8536888623. The cubic root of 986955863 is about 995.6329106260.

The spelling of 986955863 in words is "nine hundred eighty-six million, nine hundred fifty-five thousand, eight hundred sixty-three".