5681087 has 4 divisors (see below), whose sum is σ = 5685960. Its totient is φ = 5676216.

The previous prime is 5681059. The next prime is 5681089. The reversal of 5681087 is 7801865.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5681087 - 2¹⁶ = 5615551 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 3402.

It is an arithmetic number, because the mean of its divisors is an integer number (1421490).

Almost surely, 2^5681087 is an apocalyptic number.

5681087 is a deficient number, since it is larger than the sum of its proper divisors (4873).

5681087 is a wasteful number, since it uses less digits than its factorization.

5681087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 5681087 is about 2383.5030941872. The cubic root of 5681087 is about 178.4338091225.

The spelling of 5681087 in words is "five million, six hundred eighty-one thousand, eighty-seven".