13789481 has 8 divisors (see below), whose sum is σ = 14114760. Its totient is φ = 13468032.

The previous prime is 13789469. The next prime is 13789543. The reversal of 13789481 is 18498731.

It can be written as a sum of positive squares in 4 ways, for example, as 3168400 + 10621081 = 1780^2 + 3259^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13789481 - 2⁶ = 13789417 is a prime.

It is a super-2 number, since 2×13789481² = 380299572498722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13789441) 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 7 ways as a sum of consecutive naturals, for example, 7091 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (1764345).

Almost surely, 2^13789481 is an apocalyptic number.

It is an amenable number.

13789481 is a deficient number, since it is larger than the sum of its proper divisors (325279).

13789481 is a wasteful number, since it uses less digits than its factorization.

13789481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its digits is 48384, while the sum is 41.

The square root of 13789481 is about 3713.4190444926. The cubic root of 13789481 is about 239.8000707660.

The spelling of 13789481 in words is "thirteen million, seven hundred eighty-nine thousand, four hundred eighty-one".