13826087 has 4 divisors (see below), whose sum is σ = 15083016. Its totient is φ = 12569160.

The previous prime is 13826081. The next prime is 13826101. The reversal of 13826087 is 78062831.

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

It is a cyclic number.

It is not a de Polignac number, because 13826087 - 2⁶ = 13826023 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 (13826081) 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, 628448 + ... + 628469.

It is an arithmetic number, because the mean of its divisors is an integer number (3770754).

Almost surely, 2^13826087 is an apocalyptic number.

13826087 is a deficient number, since it is larger than the sum of its proper divisors (1256929).

13826087 is a wasteful number, since it uses less digits than its factorization.

13826087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256928.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 13826087 is about 3718.3446585813. The cubic root of 13826087 is about 240.0120769386.

The spelling of 13826087 in words is "thirteen million, eight hundred twenty-six thousand, eighty-seven".