13698005 has 16 divisors (see below), whose sum is σ = 18007920. Its totient is φ = 9956352.

The previous prime is 13697989. The next prime is 13698011. The reversal of 13698005 is 50089631.

It can be written as a sum of positive squares in 8 ways, for example, as 1705636 + 11992369 = 1306^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 13698005 - 2⁴ = 13697989 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 314 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1125495).

Almost surely, 2^13698005 is an apocalyptic number.

It is an amenable number.

13698005 is a deficient number, since it is larger than the sum of its proper divisors (4309915).

13698005 is a wasteful number, since it uses less digits than its factorization.

13698005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 13698005 is about 3701.0815986682. The cubic root of 13698005 is about 239.2686358092.

The spelling of 13698005 in words is "thirteen million, six hundred ninety-eight thousand, five".