13785988 has 12 divisors (see below), whose sum is σ = 24193792. Its totient is φ = 6873480.

The previous prime is 13785983. The next prime is 13786007. The reversal of 13785988 is 88958731.

13785988 is nontrivially palindromic in base 11.

It is a super-2 number, since 2×13785988² = 380106930272288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13785983) 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 3 ways as a sum of consecutive naturals, for example, 3228 + ... + 6163.

Almost surely, 2^13785988 is an apocalyptic number.

It is an amenable number.

13785988 is a deficient number, since it is larger than the sum of its proper divisors (10407804).

13785988 is a wasteful number, since it uses less digits than its factorization.

13785988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9762 (or 9760 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The square root of 13785988 is about 3712.9486934241. The cubic root of 13785988 is about 239.7798212153.

The spelling of 13785988 in words is "thirteen million, seven hundred eighty-five thousand, nine hundred eighty-eight".