9985105927 has 4 divisors (see below), whose sum is σ = 9985722880. Its totient is φ = 9984488976.

The previous prime is 9985105919. The next prime is 9985105939. The reversal of 9985105927 is 7295015899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9985105927 - 2³ = 9985105919 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 (9985105987) 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, 283527 + ... + 316792.

It is an arithmetic number, because the mean of its divisors is an integer number (2496430720).

Almost surely, 2^9985105927 is an apocalyptic number.

9985105927 is a deficient number, since it is larger than the sum of its proper divisors (616953).

9985105927 is a wasteful number, since it uses less digits than its factorization.

9985105927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616952.

The product of its (nonzero) digits is 2041200, while the sum is 55.

The square root of 9985105927 is about 99925.5018851544. The cubic root of 9985105927 is about 2153.3645483120.

The spelling of 9985105927 in words is "nine billion, nine hundred eighty-five million, one hundred five thousand, nine hundred twenty-seven".