9993091877 has 4 divisors (see below), whose sum is σ = 9993303936. Its totient is φ = 9992879820.

The previous prime is 9993091853. The next prime is 9993091897. The reversal of 9993091877 is 7781903999.

It is a happy number.

9993091877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9993091877 - 2⁶ = 9993091813 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 (9993091897) 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 3 ways as a sum of consecutive naturals, for example, 2 + ... + 141372.

It is an arithmetic number, because the mean of its divisors is an integer number (2498325984).

Almost surely, 2^9993091877 is an apocalyptic number.

It is an amenable number.

9993091877 is a deficient number, since it is larger than the sum of its proper divisors (212059).

9993091877 is a wasteful number, since it uses less digits than its factorization.

9993091877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212058.

The product of its (nonzero) digits is 7715736, while the sum is 62.

The square root of 9993091877 is about 99965.4534176682. The cubic root of 9993091877 is about 2153.9384724221.

The spelling of 9993091877 in words is "nine billion, nine hundred ninety-three million, ninety-one thousand, eight hundred seventy-seven".