14536821 has 8 divisors (see below), whose sum is σ = 20873440. Its totient is φ = 8945712.

The previous prime is 14536817. The next prime is 14536831. The reversal of 14536821 is 12863541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14536821 - 2² = 14536817 is a prime.

It is a super-2 number, since 2×14536821² = 422638329572082, 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 (14536831) 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, 186331 + ... + 186408.

It is an arithmetic number, because the mean of its divisors is an integer number (2609180).

Almost surely, 2^14536821 is an apocalyptic number.

It is an amenable number.

14536821 is a deficient number, since it is larger than the sum of its proper divisors (6336619).

14536821 is a wasteful number, since it uses less digits than its factorization.

14536821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372755.

The product of its digits is 5760, while the sum is 30.

The square root of 14536821 is about 3812.7183216178. The cubic root of 14536821 is about 244.0561827536.

The spelling of 14536821 in words is "fourteen million, five hundred thirty-six thousand, eight hundred twenty-one".