13907739 has 4 divisors (see below), whose sum is σ = 18543656. Its totient is φ = 9271824.

The previous prime is 13907737. The next prime is 13907743. The reversal of 13907739 is 93770931.

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

It is not a de Polignac number, because 13907739 - 2¹ = 13907737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13907697 and 13907706.

It is not an unprimeable number, because it can be changed into a prime (13907737) 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 3 ways as a sum of consecutive naturals, for example, 2317954 + ... + 2317959.

It is an arithmetic number, because the mean of its divisors is an integer number (4635914).

Almost surely, 2^13907739 is an apocalyptic number.

13907739 is a deficient number, since it is larger than the sum of its proper divisors (4635917).

13907739 is an equidigital number, since it uses as much as digits as its factorization.

13907739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635916.

The product of its (nonzero) digits is 35721, while the sum is 39.

The square root of 13907739 is about 3729.3081127737. The cubic root of 13907739 is about 240.4836254831.

The spelling of 13907739 in words is "thirteen million, nine hundred seven thousand, seven hundred thirty-nine".