68438867 has 4 divisors (see below), whose sum is σ = 78215856. Its totient is φ = 58661880.

The previous prime is 68438861. The next prime is 68438899. The reversal of 68438867 is 76883486.

It is a happy number.

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 68438867 - 2⁶ = 68438803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68438861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888484 + ... + 4888497.

It is an arithmetic number, because the mean of its divisors is an integer number (19553964).

Almost surely, 2^68438867 is an apocalyptic number.

68438867 is a deficient number, since it is larger than the sum of its proper divisors (9776989).

68438867 is an equidigital number, since it uses as much as digits as its factorization.

68438867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776988.

The product of its digits is 1548288, while the sum is 50.

The square root of 68438867 is about 8272.7786746655. The cubic root of 68438867 is about 409.0417179566.

The spelling of 68438867 in words is "sixty-eight million, four hundred thirty-eight thousand, eight hundred sixty-seven".