13977398 has 8 divisors (see below), whose sum is σ = 21046608. Its totient is φ = 6961864.

The previous prime is 13977371. The next prime is 13977401. The reversal of 13977398 is 89377931.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12761 + ... + 13812.

It is an arithmetic number, because the mean of its divisors is an integer number (2630826).

Almost surely, 2^13977398 is an apocalyptic number.

13977398 is a deficient number, since it is larger than the sum of its proper divisors (7069210).

13977398 is a wasteful number, since it uses less digits than its factorization.

13977398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26838.

The product of its digits is 285768, while the sum is 47.

The square root of 13977398 is about 3738.6358474716. The cubic root of 13977398 is about 240.8844564733.

The spelling of 13977398 in words is "thirteen million, nine hundred seventy-seven thousand, three hundred ninety-eight".