13709811 has 16 divisors (see below), whose sum is σ = 19562240. Its totient is φ = 8514720.

The previous prime is 13709809. The next prime is 13709831. The reversal of 13709811 is 11890731.

It is not a de Polignac number, because 13709811 - 2¹ = 13709809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13709831) 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 15 ways as a sum of consecutive naturals, for example, 1506 + ... + 5448.

It is an arithmetic number, because the mean of its divisors is an integer number (1222640).

Almost surely, 2^13709811 is an apocalyptic number.

13709811 is a deficient number, since it is larger than the sum of its proper divisors (5852429).

13709811 is a wasteful number, since it uses less digits than its factorization.

13709811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 13709811 is about 3702.6761943222. The cubic root of 13709811 is about 239.3373561413.

The spelling of 13709811 in words is "thirteen million, seven hundred nine thousand, eight hundred eleven".