80912722 has 8 divisors (see below), whose sum is σ = 132402672. Its totient is φ = 36778500.

The previous prime is 80912717. The next prime is 80912723. The reversal of 80912722 is 22721908.

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

It is not an unprimeable number, because it can be changed into a prime (80912723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838904 + ... + 1838947.

It is an arithmetic number, because the mean of its divisors is an integer number (16550334).

Almost surely, 2^80912722 is an apocalyptic number.

80912722 is a deficient number, since it is larger than the sum of its proper divisors (51489950).

80912722 is a wasteful number, since it uses less digits than its factorization.

80912722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677864.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80912722 is about 8995.1499153711. The cubic root of 80912722 is about 432.5194119613.

It can be divided in two parts, 809 and 12722, that added together give a palindrome (13531).

The spelling of 80912722 in words is "eighty million, nine hundred twelve thousand, seven hundred twenty-two".