14478947 has 4 divisors (see below), whose sum is σ = 16547376. Its totient is φ = 12410520.

The previous prime is 14478943. The next prime is 14478967. The reversal of 14478947 is 74987441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74987441 = 1607 ⋅46663.

It is a cyclic number.

It is not a de Polignac number, because 14478947 - 2² = 14478943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14478898 and 14478907.

It is not an unprimeable number, because it can be changed into a prime (14478941) 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, 1034204 + ... + 1034217.

It is an arithmetic number, because the mean of its divisors is an integer number (4136844).

Almost surely, 2^14478947 is an apocalyptic number.

14478947 is a deficient number, since it is larger than the sum of its proper divisors (2068429).

14478947 is an equidigital number, since it uses as much as digits as its factorization.

14478947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068428.

The product of its digits is 225792, while the sum is 44.

The square root of 14478947 is about 3805.1211544444. The cubic root of 14478947 is about 243.7318731205.

The spelling of 14478947 in words is "fourteen million, four hundred seventy-eight thousand, nine hundred forty-seven".