68889855 has 8 divisors (see below), whose sum is σ = 110223792. Its totient is φ = 36741248.

The previous prime is 68889851. The next prime is 68889857. The reversal of 68889855 is 55898886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68889855 - 2² = 68889851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68889795 and 68889804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68889851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296314 + ... + 2296343.

It is an arithmetic number, because the mean of its divisors is an integer number (13777974).

Almost surely, 2^68889855 is an apocalyptic number.

68889855 is a deficient number, since it is larger than the sum of its proper divisors (41333937).

68889855 is a wasteful number, since it uses less digits than its factorization.

68889855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592665.

The product of its digits is 5529600, while the sum is 57.

The square root of 68889855 is about 8299.9912650556. The cubic root of 68889855 is about 409.9382318212.

The spelling of 68889855 in words is "sixty-eight million, eight hundred eighty-nine thousand, eight hundred fifty-five".