9986755 has 4 divisors (see below), whose sum is σ = 11984112. Its totient is φ = 7989400.

The previous prime is 9986749. The next prime is 9986783. The reversal of 9986755 is 5576899.

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

It is not a de Polignac number, because 9986755 - 2³ = 9986747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9986699 and 9986708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998671 + ... + 998680.

It is an arithmetic number, because the mean of its divisors is an integer number (2996028).

Almost surely, 2^9986755 is an apocalyptic number.

9986755 is a deficient number, since it is larger than the sum of its proper divisors (1997357).

9986755 is a wasteful number, since it uses less digits than its factorization.

9986755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997356.

The product of its digits is 680400, while the sum is 49.

The square root of 9986755 is about 3160.1827478803. The cubic root of 9986755 is about 215.3483086860.

The spelling of 9986755 in words is "nine million, nine hundred eighty-six thousand, seven hundred fifty-five".