13963969 has 8 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 13777200.

The previous prime is 13963931. The next prime is 13963973. The reversal of 13963969 is 96936931.

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 13963969 - 2¹¹ = 13961921 is a prime.

It is a super-2 number, since 2×13963969² = 389984860465922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13963909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32184 + ... + 32614.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 2^13963969 is an apocalyptic number.

It is an amenable number.

13963969 is a deficient number, since it is larger than the sum of its proper divisors (188351).

13963969 is a wasteful number, since it uses less digits than its factorization.

13963969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its digits is 236196, while the sum is 46.

The square root of 13963969 is about 3736.8394399546. The cubic root of 13963969 is about 240.8072872726.

The spelling of 13963969 in words is "thirteen million, nine hundred sixty-three thousand, nine hundred sixty-nine".