68443885 has 8 divisors (see below), whose sum is σ = 82214496. Its totient is φ = 54700560.

The previous prime is 68443873. The next prime is 68443889. The reversal of 68443885 is 58834486.

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

It is not a de Polignac number, because 68443885 - 2¹⁵ = 68411117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68443889) 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, 819 + ... + 11728.

It is an arithmetic number, because the mean of its divisors is an integer number (10276812).

Almost surely, 2^68443885 is an apocalyptic number.

It is an amenable number.

68443885 is a deficient number, since it is larger than the sum of its proper divisors (13770611).

68443885 is a wasteful number, since it uses less digits than its factorization.

68443885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13643.

The product of its digits is 737280, while the sum is 46.

The square root of 68443885 is about 8273.0819529363. The cubic root of 68443885 is about 409.0517148159.

The spelling of 68443885 in words is "sixty-eight million, four hundred forty-three thousand, eight hundred eighty-five".