13373978 has 8 divisors (see below), whose sum is σ = 20080980. Its totient is φ = 6680320.

The previous prime is 13373963. The next prime is 13373981. The reversal of 13373978 is 87937331.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 2569609 = 3287^2 + 1603^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 5178.

Almost surely, 2^13373978 is an apocalyptic number.

13373978 is a deficient number, since it is larger than the sum of its proper divisors (6707002).

13373978 is a wasteful number, since it uses less digits than its factorization.

13373978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672.

The product of its digits is 95256, while the sum is 41.

The square root of 13373978 is about 3657.0449819492. The cubic root of 13373978 is about 237.3669237865.

The spelling of 13373978 in words is "thirteen million, three hundred seventy-three thousand, nine hundred seventy-eight".