13982705 has 32 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 9604800.

The previous prime is 13982693. The next prime is 13982711. The reversal of 13982705 is 50728931.

13982705 = 220² + 221² + ... + 374².

It is not a de Polignac number, because 13982705 - 2¹⁴ = 13966321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100526 + ... + 100664.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^13982705 is an apocalyptic number.

It is an amenable number.

13982705 is a deficient number, since it is larger than the sum of its proper divisors (5370895).

13982705 is a wasteful number, since it uses less digits than its factorization.

13982705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13982705 is about 3739.3455309720. The cubic root of 13982705 is about 240.9149393059.

The spelling of 13982705 in words is "thirteen million, nine hundred eighty-two thousand, seven hundred five".