13959705 has 16 divisors (see below), whose sum is σ = 22811904. Its totient is φ = 7286400.

The previous prime is 13959691. The next prime is 13959709. The reversal of 13959705 is 50795931.

It is not a de Polignac number, because 13959705 - 2¹³ = 13951513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13959709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9196 + ... + 10605.

It is an arithmetic number, because the mean of its divisors is an integer number (1425744).

Almost surely, 2^13959705 is an apocalyptic number.

13959705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13959705 is a deficient number, since it is larger than the sum of its proper divisors (8852199).

13959705 is a wasteful number, since it uses less digits than its factorization.

13959705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19856.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 13959705 is about 3736.2688607754. The cubic root of 13959705 is about 240.7827740222.

The spelling of 13959705 in words is "thirteen million, nine hundred fifty-nine thousand, seven hundred five".