72215008 has 24 divisors (see below), whose sum is σ = 142704072. Its totient is φ = 35972736.

The previous prime is 72214993. The next prime is 72215021. The reversal of 72215008 is 80051227.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4791 + ... + 12937.

It is an arithmetic number, because the mean of its divisors is an integer number (5946003).

Almost surely, 2^72215008 is an apocalyptic number.

It is an amenable number.

72215008 is a deficient number, since it is larger than the sum of its proper divisors (70489064).

72215008 is a wasteful number, since it uses less digits than its factorization.

72215008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434 (or 8426 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 72215008 is about 8497.9413977739. The cubic root of 72215008 is about 416.4304592576.

The spelling of 72215008 in words is "seventy-two million, two hundred fifteen thousand, eight".