13691104 has 24 divisors (see below), whose sum is σ = 30805488. Its totient is φ = 5867520.

The previous prime is 13691033. The next prime is 13691107. The reversal of 13691104 is 40119631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13691107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30337 + ... + 30784.

It is an arithmetic number, because the mean of its divisors is an integer number (1283562).

Almost surely, 2^13691104 is an apocalyptic number.

13691104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13691104 is an abundant number, since it is smaller than the sum of its proper divisors (17114384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13691104 is an equidigital number, since it uses as much as digits as its factorization.

13691104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61138 (or 61130 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13691104 is about 3700.1491861816. The cubic root of 13691104 is about 239.2284481998.

The spelling of 13691104 in words is "thirteen million, six hundred ninety-one thousand, one hundred four".