5421217 has 8 divisors (see below), whose sum is σ = 5536640. Its totient is φ = 5307120.

The previous prime is 5421209. The next prime is 5421263. The reversal of 5421217 is 7121245.

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 5421217 - 2³ = 5421209 is a prime.

It is a super-2 number, since 2×5421217² = 58779187522178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421287) 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, 12667 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (692080).

Almost surely, 2^5421217 is an apocalyptic number.

It is an amenable number.

5421217 is a deficient number, since it is larger than the sum of its proper divisors (115423).

5421217 is a wasteful number, since it uses less digits than its factorization.

5421217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its digits is 560, while the sum is 22.

The square root of 5421217 is about 2328.3507038245. The cubic root of 5421217 is about 175.6705376611.

The spelling of 5421217 in words is "five million, four hundred twenty-one thousand, two hundred seventeen".