13779693 has 16 divisors (see below), whose sum is σ = 21489600. Its totient is φ = 8702640.

The previous prime is 13779683. The next prime is 13779709. The reversal of 13779693 is 39697731.

13779693 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13779693 - 2⁴ = 13779677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13779613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12918 + ... + 13943.

It is an arithmetic number, because the mean of its divisors is an integer number (1343100).

Almost surely, 2^13779693 is an apocalyptic number.

It is an amenable number.

13779693 is a deficient number, since it is larger than the sum of its proper divisors (7709907).

13779693 is a wasteful number, since it uses less digits than its factorization.

13779693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26889 (or 26883 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 13779693 is about 3712.1008876376. The cubic root of 13779693 is about 239.7433193272.

The spelling of 13779693 in words is "thirteen million, seven hundred seventy-nine thousand, six hundred ninety-three".