13985497 has 4 divisors (see below), whose sum is σ = 14037376. Its totient is φ = 13933620.

The previous prime is 13985459. The next prime is 13985533. The reversal of 13985497 is 79458931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79458931 = 19 ⋅4182049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13985497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13985437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25533 + ... + 26074.

It is an arithmetic number, because the mean of its divisors is an integer number (3509344).

Almost surely, 2^13985497 is an apocalyptic number.

It is an amenable number.

13985497 is a deficient number, since it is larger than the sum of its proper divisors (51879).

13985497 is an equidigital number, since it uses as much as digits as its factorization.

13985497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51878.

The product of its digits is 272160, while the sum is 46.

The square root of 13985497 is about 3739.7188396990. The cubic root of 13985497 is about 240.9309731550.

The spelling of 13985497 in words is "thirteen million, nine hundred eighty-five thousand, four hundred ninety-seven".