13691046 has 16 divisors (see below), whose sum is σ = 27494208. Its totient is φ = 4545000.

The previous prime is 13691033. The next prime is 13691107. The reversal of 13691046 is 64019631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3040 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (1718388).

Almost surely, 2^13691046 is an apocalyptic number.

13691046 is an abundant number, since it is smaller than the sum of its proper divisors (13803162).

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

13691046 is a wasteful number, since it uses less digits than its factorization.

13691046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13691046 is about 3700.1413486514. The cubic root of 13691046 is about 239.2281103827.

It can be divided in two parts, 1369 and 1046, that added together give a triangular number (2415 = T₆₉).

The spelling of 13691046 in words is "thirteen million, six hundred ninety-one thousand, forty-six".