13976965 has 4 divisors (see below), whose sum is σ = 16772364. Its totient is φ = 11181568.

The previous prime is 13976957. The next prime is 13976969. The reversal of 13976965 is 56967931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 9972964 = 2001^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 13976965 - 2³ = 13976957 is a prime.

It is a super-2 number, since 2×13976965² = 390711101222450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13976969) 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, 1397692 + ... + 1397701.

It is an arithmetic number, because the mean of its divisors is an integer number (4193091).

Almost surely, 2^13976965 is an apocalyptic number.

It is an amenable number.

13976965 is a deficient number, since it is larger than the sum of its proper divisors (2795399).

13976965 is an equidigital number, since it uses as much as digits as its factorization.

13976965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795398.

The product of its digits is 306180, while the sum is 46.

The square root of 13976965 is about 3738.5779382006. The cubic root of 13976965 is about 240.8819690278.

It can be divided in two parts, 13976 and 965, that added together give a palindrome (14941).

The spelling of 13976965 in words is "thirteen million, nine hundred seventy-six thousand, nine hundred sixty-five".