13906719 has 24 divisors (see below), whose sum is σ = 20756112. Its totient is φ = 8968320.

The previous prime is 13906691. The next prime is 13906729. The reversal of 13906719 is 91760931.

It is not a de Polignac number, because 13906719 - 2⁵ = 13906687 is a prime.

It is a super-2 number, since 2×13906719² = 386793666689922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39904 + ... + 40250.

It is an arithmetic number, because the mean of its divisors is an integer number (864838).

Almost surely, 2^13906719 is an apocalyptic number.

13906719 is a deficient number, since it is larger than the sum of its proper divisors (6849393).

13906719 is a wasteful number, since it uses less digits than its factorization.

13906719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13906719 is about 3729.1713556768. The cubic root of 13906719 is about 240.4777462794.

The spelling of 13906719 in words is "thirteen million, nine hundred six thousand, seven hundred nineteen".