68855885 has 16 divisors (see below), whose sum is σ = 95981952. Its totient is φ = 46440000.

The previous prime is 68855873. The next prime is 68855909. The reversal of 68855885 is 58855886.

It is a happy number.

It is not a de Polignac number, because 68855885 - 2¹² = 68851789 is a prime.

It is a super-2 number, since 2×68855885² = 9482265798266450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13991 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (5998872).

Almost surely, 2^68855885 is an apocalyptic number.

It is an amenable number.

68855885 is a deficient number, since it is larger than the sum of its proper divisors (27126067).

68855885 is a wasteful number, since it uses less digits than its factorization.

68855885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32324.

The product of its digits is 3072000, while the sum is 53.

The square root of 68855885 is about 8297.9446250261. The cubic root of 68855885 is about 409.8708397439.

Subtracting from 68855885 its reverse (58855886), we obtain a palindrome (9999999).

The spelling of 68855885 in words is "sixty-eight million, eight hundred fifty-five thousand, eight hundred eighty-five".