13936709 has 4 divisors (see below), whose sum is σ = 14670240. Its totient is φ = 13203180.

The previous prime is 13936691. The next prime is 13936729. The reversal of 13936709 is 90763931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13936709 - 2¹² = 13932613 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 (13936729) 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, 366737 + ... + 366774.

It is an arithmetic number, because the mean of its divisors is an integer number (3667560).

Almost surely, 2^13936709 is an apocalyptic number.

13936709 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13936709 is a deficient number, since it is larger than the sum of its proper divisors (733531).

13936709 is an equidigital number, since it uses as much as digits as its factorization.

13936709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733530.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 13936709 is about 3733.1901907082. The cubic root of 13936709 is about 240.6504865116.

The spelling of 13936709 in words is "thirteen million, nine hundred thirty-six thousand, seven hundred nine".