72806622 has 32 divisors (see below), whose sum is σ = 168905472. Its totient is φ = 20490624.

The previous prime is 72806621. The next prime is 72806627. The reversal of 72806622 is 22660827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72806621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10123 + ... + 15750.

It is an arithmetic number, because the mean of its divisors is an integer number (5278296).

Almost surely, 2^72806622 is an apocalyptic number.

72806622 is an abundant number, since it is smaller than the sum of its proper divisors (96098850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72806622 is a wasteful number, since it uses less digits than its factorization.

72806622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25952.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 72806622 is about 8532.6796494419. The cubic root of 72806622 is about 417.5645557364.

The spelling of 72806622 in words is "seventy-two million, eight hundred six thousand, six hundred twenty-two".