986173893 has 16 divisors (see below), whose sum is σ = 1546940160. Its totient is φ = 618775488.

The previous prime is 986173873. The next prime is 986173949. The reversal of 986173893 is 398371689.

It is not a de Polignac number, because 986173893 - 2¹³ = 986165701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986173843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073805 + ... + 1074722.

It is an arithmetic number, because the mean of its divisors is an integer number (96683760).

Almost surely, 2^986173893 is an apocalyptic number.

It is an amenable number.

986173893 is a deficient number, since it is larger than the sum of its proper divisors (560766267).

986173893 is a wasteful number, since it uses less digits than its factorization.

986173893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148553 (or 2148547 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 986173893 is about 31403.4057547904. The cubic root of 986173893 is about 995.3698928611.

The spelling of 986173893 in words is "nine hundred eighty-six million, one hundred seventy-three thousand, eight hundred ninety-three".