13870007 has 4 divisors (see below), whose sum is σ = 13881120. Its totient is φ = 13858896.

The previous prime is 13869991. The next prime is 13870039. The reversal of 13870007 is 70007831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70007831 = 67 ⋅1044893.

It is a cyclic number.

It is not a de Polignac number, because 13870007 - 2⁴ = 13869991 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 (13870067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (3470280).

Almost surely, 2^13870007 is an apocalyptic number.

13870007 is a deficient number, since it is larger than the sum of its proper divisors (11113).

13870007 is an equidigital number, since it uses as much as digits as its factorization.

13870007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 13870007 is about 3724.2458296949. The cubic root of 13870007 is about 240.2659493996.

Adding to 13870007 its reverse (70007831), we get a palindrome (83877838).

The spelling of 13870007 in words is "thirteen million, eight hundred seventy thousand, seven".