68371887 has 16 divisors (see below), whose sum is σ = 95380992. Its totient is φ = 43519680.

The previous prime is 68371871. The next prime is 68371889. The reversal of 68371887 is 78817386.

It is not a de Polignac number, because 68371887 - 2⁴ = 68371871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68371889) 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 15 ways as a sum of consecutive naturals, for example, 133 + ... + 11694.

It is an arithmetic number, because the mean of its divisors is an integer number (5961312).

Almost surely, 2^68371887 is an apocalyptic number.

68371887 is a deficient number, since it is larger than the sum of its proper divisors (27009105).

68371887 is a wasteful number, since it uses less digits than its factorization.

68371887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918.

The product of its digits is 451584, while the sum is 48.

The square root of 68371887 is about 8268.7294670947. The cubic root of 68371887 is about 408.9082335872.

The spelling of 68371887 in words is "sixty-eight million, three hundred seventy-one thousand, eight hundred eighty-seven".