10201986 has 24 divisors (see below), whose sum is σ = 22193964. Its totient is φ = 3386880.

The previous prime is 10201963. The next prime is 10201987. The reversal of 10201986 is 68910201.

10201986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9418761 + 783225 = 3069^2 + 885^2 .

It is not an unprimeable number, because it can be changed into a prime (10201987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4050 + ... + 6066.

Almost surely, 2^10201986 is an apocalyptic number.

10201986 is an abundant number, since it is smaller than the sum of its proper divisors (11991978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10201986 is a wasteful number, since it uses less digits than its factorization.

10201986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 10201986 is about 3194.0547897618. The cubic root of 10201986 is about 216.8843629186.

The spelling of 10201986 in words is "ten million, two hundred one thousand, nine hundred eighty-six".