13786730 has 8 divisors (see below), whose sum is σ = 24816132. Its totient is φ = 5514688.

The previous prime is 13786699. The next prime is 13786733. The reversal of 13786730 is 3768731.

It can be written as a sum of positive squares in 2 ways, for example, as 13786369 + 361 = 3713^2 + 19^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13786733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689327 + ... + 689346.

Almost surely, 2^13786730 is an apocalyptic number.

13786730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13786730 is a deficient number, since it is larger than the sum of its proper divisors (11029402).

13786730 is a wasteful number, since it uses less digits than its factorization.

13786730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378680.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 13786730 is about 3713.0486126632. The cubic root of 13786730 is about 239.7841230092.

The spelling of 13786730 in words is "thirteen million, seven hundred eighty-six thousand, seven hundred thirty".