886609987 has 4 divisors (see below), whose sum is σ = 893591296. Its totient is φ = 879628680.

The previous prime is 886609981. The next prime is 886610071. The reversal of 886609987 is 789906688.

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 886609987 - 2⁷ = 886609859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (886609981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3490464 + ... + 3490717.

It is an arithmetic number, because the mean of its divisors is an integer number (223397824).

Almost surely, 2^886609987 is an apocalyptic number.

886609987 is a deficient number, since it is larger than the sum of its proper divisors (6981309).

886609987 is a wasteful number, since it uses less digits than its factorization.

886609987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981308.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The square root of 886609987 is about 29775.9968263029. The cubic root of 886609987 is about 960.6773240155.

The spelling of 886609987 in words is "eight hundred eighty-six million, six hundred nine thousand, nine hundred eighty-seven".