9788173087 has 16 divisors (see below), whose sum is σ = 12206380032. Its totient is φ = 7625308320.

The previous prime is 9788173081. The next prime is 9788173091. The reversal of 9788173087 is 7803718879.

It is not a de Polignac number, because 9788173087 - 2⁷ = 9788172959 is a prime.

It is a super-2 number, since 2×9788173087² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9788173081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367753 + ... + 393469.

It is an arithmetic number, because the mean of its divisors is an integer number (762898752).

Almost surely, 2^9788173087 is an apocalyptic number.

9788173087 is a deficient number, since it is larger than the sum of its proper divisors (2418206945).

9788173087 is a wasteful number, since it uses less digits than its factorization.

9788173087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30678.

The product of its (nonzero) digits is 4741632, while the sum is 58.

The square root of 9788173087 is about 98935.1964014829. The cubic root of 9788173087 is about 2139.1137541288.

The spelling of 9788173087 in words is "nine billion, seven hundred eighty-eight million, one hundred seventy-three thousand, eighty-seven".