13346978 has 8 divisors (see below), whose sum is σ = 20060460. Its totient is φ = 6660160.

The previous prime is 13346903. The next prime is 13347031. The reversal of 13346978 is 87964331.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 552049 = 3577^2 + 743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5363 + ... + 7446.

Almost surely, 2^13346978 is an apocalyptic number.

13346978 is a deficient number, since it is larger than the sum of its proper divisors (6713482).

13346978 is a wasteful number, since it uses less digits than its factorization.

13346978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13332.

The product of its digits is 108864, while the sum is 41.

The square root of 13346978 is about 3653.3516118764. The cubic root of 13346978 is about 237.2070804287.

The spelling of 13346978 in words is "thirteen million, three hundred forty-six thousand, nine hundred seventy-eight".