14830978 has 4 divisors (see below), whose sum is σ = 22246470. Its totient is φ = 7415488.

The previous prime is 14830973. The next prime is 14830993. The reversal of 14830978 is 87903841.

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

It can be written as a sum of positive squares in only one way, i.e., 10517049 + 4313929 = 3243^2 + 2077^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 14830978.

It is not an unprimeable number, because it can be changed into a prime (14830973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3707743 + ... + 3707746.

Almost surely, 2^14830978 is an apocalyptic number.

14830978 is the 2059-th centered heptagonal number.

14830978 is a deficient number, since it is larger than the sum of its proper divisors (7415492).

14830978 is an equidigital number, since it uses as much as digits as its factorization.

14830978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415491.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 14830978 is about 3851.1008815662. The cubic root of 14830978 is about 245.6913859714.

The spelling of 14830978 in words is "fourteen million, eight hundred thirty thousand, nine hundred seventy-eight".