5887981 has 6 divisors (see below), whose sum is σ = 6472046. Its totient is φ = 5352600.

The previous prime is 5887963. The next prime is 5887993. The reversal of 5887981 is 1897885.

It can be written as a sum of positive squares in only one way, i.e., 4553956 + 1334025 = 2134^2 + 1155^2 .

It is not a de Polignac number, because 5887981 - 2¹¹ = 5885933 is a prime.

It is a super-2 number, since 2×5887981² = 69336640512722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5887381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24210 + ... + 24451.

Almost surely, 2^5887981 is an apocalyptic number.

It is an amenable number.

5887981 is a deficient number, since it is larger than the sum of its proper divisors (584065).

5887981 is a wasteful number, since it uses less digits than its factorization.

5887981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48683 (or 48672 counting only the distinct ones).

The product of its digits is 161280, while the sum is 46.

The square root of 5887981 is about 2426.5162270218. The cubic root of 5887981 is about 180.5741031869.

The spelling of 5887981 in words is "five million, eight hundred eighty-seven thousand, nine hundred eighty-one".