10208986 has 8 divisors (see below), whose sum is σ = 15841620. Its totient is φ = 4928448.

The previous prime is 10208983. The next prime is 10209007. The reversal of 10208986 is 68980201.

It can be written as a sum of positive squares in 2 ways, for example, as 10208025 + 961 = 3195^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10208983) 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, 87951 + ... + 88066.

Almost surely, 2^10208986 is an apocalyptic number.

10208986 is a deficient number, since it is larger than the sum of its proper divisors (5632634).

10208986 is a wasteful number, since it uses less digits than its factorization.

10208986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176048.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 10208986 is about 3195.1503876970. The cubic root of 10208986 is about 216.9339559894.

The spelling of 10208986 in words is "ten million, two hundred eight thousand, nine hundred eighty-six".