5205986 has 4 divisors (see below), whose sum is σ = 7808982. Its totient is φ = 2602992.

The previous prime is 5205979. The next prime is 5205989. The reversal of 5205986 is 6895025.

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

It can be written as a sum of positive squares in only one way, i.e., 5202961 + 3025 = 2281^2 + 55^2 .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (5205989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301495 + ... + 1301498.

Almost surely, 2^5205986 is an apocalyptic number.

5205986 is a deficient number, since it is larger than the sum of its proper divisors (2602996).

5205986 is a wasteful number, since it uses less digits than its factorization.

5205986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602995.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 5205986 is about 2281.6629900141. The cubic root of 5205986 is about 173.3142738741.

The spelling of 5205986 in words is "five million, two hundred five thousand, nine hundred eighty-six".