14728057 has 4 divisors (see below), whose sum is σ = 14749540. Its totient is φ = 14706576.

The previous prime is 14728039. The next prime is 14728093. The reversal of 14728057 is 75082741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8271376 + 6456681 = 2876^2 + 2541^2 .

It is a cyclic number.

It is not a de Polignac number, because 14728057 - 2¹⁹ = 14203769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14728157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9678 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (3687385).

Almost surely, 2^14728057 is an apocalyptic number.

It is an amenable number.

14728057 is a deficient number, since it is larger than the sum of its proper divisors (21483).

14728057 is an equidigital number, since it uses as much as digits as its factorization.

14728057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21482.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 14728057 is about 3837.7150754062. The cubic root of 14728057 is about 245.1217332015.

The spelling of 14728057 in words is "fourteen million, seven hundred twenty-eight thousand, fifty-seven".