13787047 has 8 divisors (see below), whose sum is σ = 14281344. Its totient is φ = 13300728.

The previous prime is 13787041. The next prime is 13787069. The reversal of 13787047 is 74078731.

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 13787047 - 2¹⁹ = 13262759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13786997 and 13787015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13787041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638 + ... + 5500.

It is an arithmetic number, because the mean of its divisors is an integer number (1785168).

Almost surely, 2^13787047 is an apocalyptic number.

13787047 is a deficient number, since it is larger than the sum of its proper divisors (494297).

13787047 is an equidigital number, since it uses as much as digits as its factorization.

13787047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 13787047 is about 3713.0912997124. The cubic root of 13787047 is about 239.7859607905.

The spelling of 13787047 in words is "thirteen million, seven hundred eighty-seven thousand, forty-seven".