14685978 has 16 divisors (see below), whose sum is σ = 29536416. Its totient is φ = 4867920.

The previous prime is 14685967. The next prime is 14685997. The reversal of 14685978 is 87958641.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (1846026).

Almost surely, 2^14685978 is an apocalyptic number.

14685978 is an abundant number, since it is smaller than the sum of its proper divisors (14850438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14685978 is a wasteful number, since it uses less digits than its factorization.

14685978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709.

The product of its digits is 483840, while the sum is 48.

The square root of 14685978 is about 3832.2288553791. The cubic root of 14685978 is about 244.8880677090. Note that the first 3 decimals are identical.

The spelling of 14685978 in words is "fourteen million, six hundred eighty-five thousand, nine hundred seventy-eight".