13087858 has 32 divisors (see below), whose sum is σ = 23998464. Its totient is φ = 5225472.

The previous prime is 13087819. The next prime is 13087861. The reversal of 13087858 is 85878031.

It is a self number, because there is not a number n which added to its sum of digits gives 13087858.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30010 + ... + 30442.

It is an arithmetic number, because the mean of its divisors is an integer number (749952).

Almost surely, 2^13087858 is an apocalyptic number.

13087858 is a deficient number, since it is larger than the sum of its proper divisors (10910606).

13087858 is a wasteful number, since it uses less digits than its factorization.

13087858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 13087858 is about 3617.7144718731. The cubic root of 13087858 is about 235.6619813808.

The spelling of 13087858 in words is "thirteen million, eighty-seven thousand, eight hundred fifty-eight".