80727930 has 96 divisors (see below), whose sum is σ = 223067520. Its totient is φ = 20211840.

The previous prime is 80727877. The next prime is 80727943. The reversal of 80727930 is 3972708.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121800 + ... + 122460.

It is an arithmetic number, because the mean of its divisors is an integer number (2323620).

Almost surely, 2^80727930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80727930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111533760).

80727930 is an abundant number, since it is smaller than the sum of its proper divisors (142339590).

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

80727930 is a wasteful number, since it uses less digits than its factorization.

80727930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 80727930 is about 8984.8722862376. The cubic root of 80727930 is about 432.1898920837.

The spelling of 80727930 in words is "eighty million, seven hundred twenty-seven thousand, nine hundred thirty".