14028779 has 4 divisors (see below), whose sum is σ = 14512560. Its totient is φ = 13545000.

The previous prime is 14028761. The next prime is 14028823. The reversal of 14028779 is 97782041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97782041 = 7 ⋅13968863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14028779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14028739) 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, 241847 + ... + 241904.

It is an arithmetic number, because the mean of its divisors is an integer number (3628140).

Almost surely, 2^14028779 is an apocalyptic number.

14028779 is a deficient number, since it is larger than the sum of its proper divisors (483781).

14028779 is an equidigital number, since it uses as much as digits as its factorization.

14028779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483780.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 14028779 is about 3745.5011680682. The cubic root of 14028779 is about 241.1792597769.

The spelling of 14028779 in words is "fourteen million, twenty-eight thousand, seven hundred seventy-nine".