72116894 has 32 divisors (see below), whose sum is σ = 117504000. Its totient is φ = 33086880.

The previous prime is 72116893. The next prime is 72116897. The reversal of 72116894 is 49861127.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72116893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265979 + ... + 266249.

It is an arithmetic number, because the mean of its divisors is an integer number (3672000).

Almost surely, 2^72116894 is an apocalyptic number.

72116894 is a deficient number, since it is larger than the sum of its proper divisors (45387106).

72116894 is a wasteful number, since it uses less digits than its factorization.

72116894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 24192, while the sum is 38.

The square root of 72116894 is about 8492.1666257793. The cubic root of 72116894 is about 416.2417811385.

The spelling of 72116894 in words is "seventy-two million, one hundred sixteen thousand, eight hundred ninety-four".