14668978 has 4 divisors (see below), whose sum is σ = 22003470. Its totient is φ = 7334488.

The previous prime is 14668961. The next prime is 14668999. The reversal of 14668978 is 87986641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87986641 = 59 ⋅1491299.

It can be written as a sum of positive squares in only one way, i.e., 7524049 + 7144929 = 2743^2 + 2673^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3667243 + ... + 3667246.

Almost surely, 2^14668978 is an apocalyptic number.

14668978 is a deficient number, since it is larger than the sum of its proper divisors (7334492).

14668978 is an equidigital number, since it uses as much as digits as its factorization.

14668978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334491.

The product of its digits is 580608, while the sum is 49.

The square root of 14668978 is about 3830.0101827541. The cubic root of 14668978 is about 244.7935397963.

The spelling of 14668978 in words is "fourteen million, six hundred sixty-eight thousand, nine hundred seventy-eight".