13960905 has 16 divisors (see below), whose sum is σ = 25528704. Its totient is φ = 6382080.

The previous prime is 13960901. The next prime is 13960907. The reversal of 13960905 is 50906931.

13960905 = T₁₂₆ + T₁₂₇ + ... + T₄₄₀.

It is not a de Polignac number, because 13960905 - 2² = 13960901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13960901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66376 + ... + 66585.

It is an arithmetic number, because the mean of its divisors is an integer number (1595544).

Almost surely, 2^13960905 is an apocalyptic number.

13960905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13960905 is a deficient number, since it is larger than the sum of its proper divisors (11567799).

13960905 is a wasteful number, since it uses less digits than its factorization.

13960905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132976.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 13960905 is about 3736.4294453395. The cubic root of 13960905 is about 240.7896731902.

The spelling of 13960905 in words is "thirteen million, nine hundred sixty thousand, nine hundred five".