13975997 has 8 divisors (see below), whose sum is σ = 16095552. Its totient is φ = 11887200.

The previous prime is 13975993. The next prime is 13976021. The reversal of 13975997 is 79957931.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13975997 - 2² = 13975993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13975991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6704 + ... + 8537.

It is an arithmetic number, because the mean of its divisors is an integer number (2011944).

Almost surely, 2^13975997 is an apocalyptic number.

It is an amenable number.

13975997 is a deficient number, since it is larger than the sum of its proper divisors (2119555).

13975997 is a wasteful number, since it uses less digits than its factorization.

13975997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15379.

The product of its digits is 535815, while the sum is 50.

The square root of 13975997 is about 3738.4484749693. The cubic root of 13975997 is about 240.8764079939.

The spelling of 13975997 in words is "thirteen million, nine hundred seventy-five thousand, nine hundred ninety-seven".