13700047 has 4 divisors (see below), whose sum is σ = 14142016. Its totient is φ = 13258080.

The previous prime is 13700039. The next prime is 13700059. The reversal of 13700047 is 74000731.

13700047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13700047 - 2³ = 13700039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13700017) 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, 220938 + ... + 220999.

It is an arithmetic number, because the mean of its divisors is an integer number (3535504).

Almost surely, 2^13700047 is an apocalyptic number.

13700047 is a deficient number, since it is larger than the sum of its proper divisors (441969).

13700047 is an equidigital number, since it uses as much as digits as its factorization.

13700047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441968.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 13700047 is about 3701.3574536918. The cubic root of 13700047 is about 239.2805247005.

Adding to 13700047 its reverse (74000731), we get a palindrome (87700778).

The spelling of 13700047 in words is "thirteen million, seven hundred thousand, forty-seven".