14979947 has 4 divisors (see below), whose sum is σ = 14994816. Its totient is φ = 14965080.

The previous prime is 14979917. The next prime is 14979949. The reversal of 14979947 is 74997941.

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

It is a cyclic number.

It is not a de Polignac number, because 14979947 - 2²⁰ = 13931371 is a prime.

It is a super-3 number, since 3×14979947³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14979895 and 14979904.

It is not an unprimeable number, because it can be changed into a prime (14979949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5804 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (3748704).

Almost surely, 2^14979947 is an apocalyptic number.

14979947 is a deficient number, since it is larger than the sum of its proper divisors (14869).

14979947 is a wasteful number, since it uses less digits than its factorization.

14979947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868.

The product of its digits is 571536, while the sum is 50.

The square root of 14979947 is about 3870.3936492300. The cubic root of 14979947 is about 246.5112585323.

The spelling of 14979947 in words is "fourteen million, nine hundred seventy-nine thousand, nine hundred forty-seven".