5487721 has 8 divisors (see below), whose sum is σ = 5585184. Its totient is φ = 5391360.

The previous prime is 5487707. The next prime is 5487761. The reversal of 5487721 is 1277845.

It is a happy number.

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 5487721 - 2⁵ = 5487689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5487701) 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, 21225 + ... + 21481.

It is an arithmetic number, because the mean of its divisors is an integer number (698148).

Almost surely, 2^5487721 is an apocalyptic number.

It is an amenable number.

5487721 is a deficient number, since it is larger than the sum of its proper divisors (97463).

5487721 is a wasteful number, since it uses less digits than its factorization.

5487721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its digits is 15680, while the sum is 34.

The square root of 5487721 is about 2342.5885255418. The cubic root of 5487721 is about 176.3859578362.

The spelling of 5487721 in words is "five million, four hundred eighty-seven thousand, seven hundred twenty-one".