9384989877 has 6 divisors (see below), whose sum is σ = 13556096502. Its totient is φ = 6256659912.

The previous prime is 9384989857. The next prime is 9384989909. The reversal of 9384989877 is 7789894839.

9384989877 is a `hidden beast` number, since 9 + 384 + 98 + 98 + 77 = 666.

9384989877 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8768262321 + 616727556 = 93639^2 + 24834^2 .

It is not a de Polignac number, because 9384989877 - 2¹⁰ = 9384988853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9384989807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521388318 + ... + 521388335.

It is an arithmetic number, because the mean of its divisors is an integer number (2259349417).

Almost surely, 2^9384989877 is an apocalyptic number.

It is an amenable number.

9384989877 is a deficient number, since it is larger than the sum of its proper divisors (4171106625).

9384989877 is a wasteful number, since it uses less digits than its factorization.

9384989877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042776659 (or 1042776656 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The square root of 9384989877 is about 96876.1574227632. The cubic root of 9384989877 is about 2109.3303563700.

The spelling of 9384989877 in words is "nine billion, three hundred eighty-four million, nine hundred eighty-nine thousand, eight hundred seventy-seven".