5481987 has 16 divisors (see below), whose sum is σ = 8558592. Its totient is φ = 3055680.

The previous prime is 5481967. The next prime is 5481989. The reversal of 5481987 is 7891845.

It is not a de Polignac number, because 5481987 - 2¹⁰ = 5480963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5481989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2323 + ... + 4044.

It is an arithmetic number, because the mean of its divisors is an integer number (534912).

Almost surely, 2^5481987 is an apocalyptic number.

5481987 is a deficient number, since it is larger than the sum of its proper divisors (3076605).

5481987 is a wasteful number, since it uses less digits than its factorization.

5481987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418.

The product of its digits is 80640, while the sum is 42.

The square root of 5481987 is about 2341.3643458462. The cubic root of 5481987 is about 176.3245024799.

The spelling of 5481987 in words is "five million, four hundred eighty-one thousand, nine hundred eighty-seven".