14750821 has 12 divisors (see below), whose sum is σ = 16116300. Its totient is φ = 13483008.

The previous prime is 14750807. The next prime is 14750833. The reversal of 14750821 is 12805741.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 11826721 = 1710^2 + 3439^2 .

It is not a de Polignac number, because 14750821 - 2⁵ = 14750789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14750821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14750221) 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, 9765 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (1343025).

Almost surely, 2^14750821 is an apocalyptic number.

It is an amenable number.

14750821 is a deficient number, since it is larger than the sum of its proper divisors (1365479).

14750821 is a wasteful number, since it uses less digits than its factorization.

14750821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 14750821 is about 3840.6797575429. The cubic root of 14750821 is about 245.2479566576.

The spelling of 14750821 in words is "fourteen million, seven hundred fifty thousand, eight hundred twenty-one".