5207987 has 4 divisors (see below), whose sum is σ = 5218056. Its totient is φ = 5197920.

The previous prime is 5207981. The next prime is 5208041. The reversal of 5207987 is 7897025.

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

It is a cyclic number.

It is not a de Polignac number, because 5207987 - 2⁴ = 5207971 is a prime.

It is a super-3 number, since 3×5207987³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5207987.

It is not an unprimeable number, because it can be changed into a prime (5207981) 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, 4214 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (1304514).

Almost surely, 2^5207987 is an apocalyptic number.

5207987 is a deficient number, since it is larger than the sum of its proper divisors (10069).

5207987 is an equidigital number, since it uses as much as digits as its factorization.

5207987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 5207987 is about 2282.1014438451. The cubic root of 5207987 is about 173.3364763566.

Adding to 5207987 its sum of digits (38), we get a palindrome (5208025).

The spelling of 5207987 in words is "five million, two hundred seven thousand, nine hundred eighty-seven".