5487421 has 4 divisors (see below), whose sum is σ = 5493852. Its totient is φ = 5480992.

The previous prime is 5487407. The next prime is 5487451. The reversal of 5487421 is 1247845.

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 can be written as a sum of positive squares in 2 ways, for example, as 151321 + 5336100 = 389^2 + 2310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5487421 - 2⁹ = 5486909 is a prime.

It is a super-2 number, since 2×5487421² = 60223578462482, 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 (5487401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696 + ... + 3721.

It is an arithmetic number, because the mean of its divisors is an integer number (1373463).

Almost surely, 2^5487421 is an apocalyptic number.

It is an amenable number.

5487421 is a deficient number, since it is larger than the sum of its proper divisors (6431).

5487421 is a wasteful number, since it uses less digits than its factorization.

5487421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430.

The product of its digits is 8960, while the sum is 31.

The square root of 5487421 is about 2342.5244929349. The cubic root of 5487421 is about 176.3827435844.

The spelling of 5487421 in words is "five million, four hundred eighty-seven thousand, four hundred twenty-one".