13968905 has 8 divisors (see below), whose sum is σ = 17171784. Its totient is φ = 10902400.

The previous prime is 13968887. The next prime is 13968907. The reversal of 13968905 is 50986931.

It can be written as a sum of positive squares in 4 ways, for example, as 1408969 + 12559936 = 1187^2 + 3544^2 .

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

It is not a de Polignac number, because 13968905 - 2⁸ = 13968649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (13968907) 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, 33866 + ... + 34275.

It is an arithmetic number, because the mean of its divisors is an integer number (2146473).

Almost surely, 2^13968905 is an apocalyptic number.

It is an amenable number.

13968905 is a deficient number, since it is larger than the sum of its proper divisors (3202879).

13968905 is an equidigital number, since it uses as much as digits as its factorization.

13968905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68187.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 13968905 is about 3737.4998327759. The cubic root of 13968905 is about 240.8356575434.

It can be divided in two parts, 1396 and 8905, that added together give a palindrome (10301).

The spelling of 13968905 in words is "thirteen million, nine hundred sixty-eight thousand, nine hundred five".