13963697 has 4 divisors (see below), whose sum is σ = 15233136. Its totient is φ = 12694260.

The previous prime is 13963687. The next prime is 13963717. The reversal of 13963697 is 79636931.

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: 79636931 = 11 ⋅7239721.

It is a cyclic number.

It is not a de Polignac number, because 13963697 - 2¹⁶ = 13898161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13963637) by changing a digit.

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, 634703 + ... + 634724.

It is an arithmetic number, because the mean of its divisors is an integer number (3808284).

Almost surely, 2^13963697 is an apocalyptic number.

It is an amenable number.

13963697 is a deficient number, since it is larger than the sum of its proper divisors (1269439).

13963697 is a wasteful number, since it uses less digits than its factorization.

13963697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269438.

The product of its digits is 183708, while the sum is 44.

The square root of 13963697 is about 3736.8030453852. The cubic root of 13963697 is about 240.8057237246.

It can be divided in two parts, 139 and 63697, that added together give a palindrome (63836).

The spelling of 13963697 in words is "thirteen million, nine hundred sixty-three thousand, six hundred ninety-seven".