13490685 has 32 divisors (see below), whose sum is σ = 25831680. Its totient is φ = 6640704.

The previous prime is 13490677. The next prime is 13490689. The reversal of 13490685 is 58609431.

It is not a de Polignac number, because 13490685 - 2³ = 13490677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2089 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (807240).

Almost surely, 2^13490685 is an apocalyptic number.

13490685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13490685 is a deficient number, since it is larger than the sum of its proper divisors (12340995).

13490685 is a wasteful number, since it uses less digits than its factorization.

13490685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714 (or 7708 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 13490685 is about 3672.9667844945. The cubic root of 13490685 is about 238.0553798581.

The spelling of 13490685 in words is "thirteen million, four hundred ninety thousand, six hundred eighty-five".