5259986 has 8 divisors (see below), whose sum is σ = 7900284. Its totient is φ = 2626560.

The previous prime is 5259983. The next prime is 5259997. The reversal of 5259986 is 6899525.

It can be written as a sum of positive squares in 2 ways, for example, as 5040025 + 219961 = 2245^2 + 469^2 .

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

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5259983) 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, 1166 + ... + 3446.

Almost surely, 2^5259986 is an apocalyptic number.

5259986 is a deficient number, since it is larger than the sum of its proper divisors (2640298).

5259986 is a wasteful number, since it uses less digits than its factorization.

5259986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436.

The product of its digits is 194400, while the sum is 44.

The square root of 5259986 is about 2293.4659360889. The cubic root of 5259986 is about 173.9114580127.

The spelling of 5259986 in words is "five million, two hundred fifty-nine thousand, nine hundred eighty-six".