13929311 has 4 divisors (see below), whose sum is σ = 15195624. Its totient is φ = 12663000.

The previous prime is 13929287. The next prime is 13929317. The reversal of 13929311 is 11392931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13929311 - 2⁶ = 13929247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13929317) 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, 633140 + ... + 633161.

It is an arithmetic number, because the mean of its divisors is an integer number (3798906).

Almost surely, 2^13929311 is an apocalyptic number.

13929311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13929311 is a deficient number, since it is larger than the sum of its proper divisors (1266313).

13929311 is a wasteful number, since it uses less digits than its factorization.

13929311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266312.

The product of its digits is 1458, while the sum is 29.

The square root of 13929311 is about 3732.1992176196. The cubic root of 13929311 is about 240.6078976095.

The spelling of 13929311 in words is "thirteen million, nine hundred twenty-nine thousand, three hundred eleven".