71872118 has 16 divisors (see below), whose sum is σ = 110925504. Its totient is φ = 34908480.

The previous prime is 71872111. The next prime is 71872127. The reversal of 71872118 is 81127817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71872111) 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 7 ways as a sum of consecutive naturals, for example, 10088 + ... + 15668.

It is an arithmetic number, because the mean of its divisors is an integer number (6932844).

Almost surely, 2^71872118 is an apocalyptic number.

71872118 is a deficient number, since it is larger than the sum of its proper divisors (39053386).

71872118 is a wasteful number, since it uses less digits than its factorization.

71872118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its digits is 6272, while the sum is 35.

The square root of 71872118 is about 8477.7425061156. The cubic root of 71872118 is about 415.7703174599.

The spelling of 71872118 in words is "seventy-one million, eight hundred seventy-two thousand, one hundred eighteen".