14397421 has 8 divisors (see below), whose sum is σ = 15190400. Its totient is φ = 13608000.

The previous prime is 14397391. The next prime is 14397457. The reversal of 14397421 is 12479341.

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 14397421 - 2¹¹ = 14395373 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 (14395421) 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, 13765 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (1898800).

Almost surely, 2^14397421 is an apocalyptic number.

It is an amenable number.

14397421 is a deficient number, since it is larger than the sum of its proper divisors (792979).

14397421 is a wasteful number, since it uses less digits than its factorization.

14397421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its digits is 6048, while the sum is 31.

The square root of 14397421 is about 3794.3933638989. The cubic root of 14397421 is about 243.2735548827.

The spelling of 14397421 in words is "fourteen million, three hundred ninety-seven thousand, four hundred twenty-one".