5287861 has 8 divisors (see below), whose sum is σ = 5558400. Its totient is φ = 5020752.

The previous prime is 5287859. The next prime is 5287879. The reversal of 5287861 is 1687825.

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

It is a cyclic number.

It is not a de Polignac number, because 5287861 - 2¹ = 5287859 is a prime.

It is a super-2 number, since 2×5287861² = 55922947910642, which contains 22 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 5287861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5287801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2656 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (694800).

Almost surely, 2^5287861 is an apocalyptic number.

It is an amenable number.

5287861 is a deficient number, since it is larger than the sum of its proper divisors (270539).

5287861 is a wasteful number, since it uses less digits than its factorization.

5287861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its digits is 26880, while the sum is 37.

The square root of 5287861 is about 2299.5349529851. The cubic root of 5287861 is about 174.2181282523.

The spelling of 5287861 in words is "five million, two hundred eighty-seven thousand, eight hundred sixty-one".