72710922 has 8 divisors (see below), whose sum is σ = 145421856. Its totient is φ = 24236972.

The previous prime is 72710899. The next prime is 72710923. The reversal of 72710922 is 22901727.

It is a happy number.

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

72710922 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 72710922.

It is not an unprimeable number, because it can be changed into a prime (72710923) 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 3 ways as a sum of consecutive naturals, for example, 6059238 + ... + 6059249.

It is an arithmetic number, because the mean of its divisors is an integer number (18177732).

Almost surely, 2^72710922 is an apocalyptic number.

72710922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72710922 is a wasteful number, since it uses less digits than its factorization.

72710922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118492.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 72710922 is about 8527.0699539760. The cubic root of 72710922 is about 417.3815208767.

The spelling of 72710922 in words is "seventy-two million, seven hundred ten thousand, nine hundred twenty-two".