72068894 has 8 divisors (see below), whose sum is σ = 109153200. Its totient is φ = 35684496.

The previous prime is 72068869. The next prime is 72068897. The reversal of 72068894 is 49886027.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72068897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174719 + ... + 175130.

It is an arithmetic number, because the mean of its divisors is an integer number (13644150).

Almost surely, 2^72068894 is an apocalyptic number.

72068894 is a deficient number, since it is larger than the sum of its proper divisors (37084306).

72068894 is a wasteful number, since it uses less digits than its factorization.

72068894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349954.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 72068894 is about 8489.3400214622. The cubic root of 72068894 is about 416.1494123987.

The spelling of 72068894 in words is "seventy-two million, sixty-eight thousand, eight hundred ninety-four".