5398421 has 8 divisors (see below), whose sum is σ = 6286464. Its totient is φ = 4539600.

The previous prime is 5398409. The next prime is 5398427. The reversal of 5398421 is 1248935.

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 5398421 - 2⁶ = 5398357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5398427) 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, 6905 + ... + 7646.

It is an arithmetic number, because the mean of its divisors is an integer number (785808).

Almost surely, 2^5398421 is an apocalyptic number.

It is an amenable number.

5398421 is a deficient number, since it is larger than the sum of its proper divisors (888043).

5398421 is a wasteful number, since it uses less digits than its factorization.

5398421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14611.

The product of its digits is 8640, while the sum is 32.

The square root of 5398421 is about 2323.4502361789. The cubic root of 5398421 is about 175.4239625368.

The spelling of 5398421 in words is "five million, three hundred ninety-eight thousand, four hundred twenty-one".