5587981 has 8 divisors (see below), whose sum is σ = 6606720. Its totient is φ = 4624368.

The previous prime is 5587973. The next prime is 5587991. The reversal of 5587981 is 1897855.

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

It is not a de Polignac number, because 5587981 - 2³ = 5587973 is a prime.

It is a super-2 number, since 2×5587981² = 62451063312722, 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 (5587991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13561 + ... + 13966.

It is an arithmetic number, because the mean of its divisors is an integer number (825840).

Almost surely, 2^5587981 is an apocalyptic number.

It is an amenable number.

5587981 is a deficient number, since it is larger than the sum of its proper divisors (1018739).

5587981 is a wasteful number, since it uses less digits than its factorization.

5587981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27563.

The product of its digits is 100800, while the sum is 43.

The square root of 5587981 is about 2363.8910719405. The cubic root of 5587981 is about 177.4536650862.

The spelling of 5587981 in words is "five million, five hundred eighty-seven thousand, nine hundred eighty-one".