5447421 has 12 divisors (see below), whose sum is σ = 8992672. Its totient is φ = 3112776.

The previous prime is 5447417. The next prime is 5447443. The reversal of 5447421 is 1247445.

It is not a de Polignac number, because 5447421 - 2² = 5447417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43171 + ... + 43296.

Almost surely, 2^5447421 is an apocalyptic number.

It is an amenable number.

5447421 is a deficient number, since it is larger than the sum of its proper divisors (3545251).

5447421 is a wasteful number, since it uses less digits than its factorization.

5447421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86480 (or 86477 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 5447421 is about 2333.9710795123. The cubic root of 5447421 is about 175.9531232767.

The spelling of 5447421 in words is "five million, four hundred forty-seven thousand, four hundred twenty-one".