80489772 has 72 divisors (see below), whose sum is σ = 222942720. Its totient is φ = 24282720.

The previous prime is 80489771. The next prime is 80489779. The reversal of 80489772 is 27798408.

It is a super-2 number, since 2×80489772² = 12957206793223968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80489771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173613 + ... + 174075.

Almost surely, 2^80489772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80489772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111471360).

80489772 is an abundant number, since it is smaller than the sum of its proper divisors (142452948).

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

80489772 is a wasteful number, since it uses less digits than its factorization.

80489772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 80489772 is about 8971.6092202012. The cubic root of 80489772 is about 431.7644678014.

The spelling of 80489772 in words is "eighty million, four hundred eighty-nine thousand, seven hundred seventy-two".