10091986 has 16 divisors (see below), whose sum is σ = 16184448. Its totient is φ = 4708000.

The previous prime is 10091953. The next prime is 10091987. The reversal of 10091986 is 68919001.

It is not an unprimeable number, because it can be changed into a prime (10091987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (1011528).

Almost surely, 2^10091986 is an apocalyptic number.

10091986 is a deficient number, since it is larger than the sum of its proper divisors (6092462).

10091986 is a wasteful number, since it uses less digits than its factorization.

10091986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 10091986 is about 3176.7886300476. The cubic root of 10091986 is about 216.1020465463.

The spelling of 10091986 in words is "ten million, ninety-one thousand, nine hundred eighty-six".