14979865 has 4 divisors (see below), whose sum is σ = 17975844. Its totient is φ = 11983888.

The previous prime is 14979859. The next prime is 14979869. The reversal of 14979865 is 56897941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56897941 = 67 ⋅849223.

It can be written as a sum of positive squares in 2 ways, for example, as 7946761 + 7033104 = 2819^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 14979865 - 2¹¹ = 14977817 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14979869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1497982 + ... + 1497991.

It is an arithmetic number, because the mean of its divisors is an integer number (4493961).

Almost surely, 2^14979865 is an apocalyptic number.

It is an amenable number.

14979865 is a deficient number, since it is larger than the sum of its proper divisors (2995979).

14979865 is an equidigital number, since it uses as much as digits as its factorization.

14979865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995978.

The product of its digits is 544320, while the sum is 49.

The square root of 14979865 is about 3870.3830559778. The cubic root of 14979865 is about 246.5108087319.

The spelling of 14979865 in words is "fourteen million, nine hundred seventy-nine thousand, eight hundred sixty-five".