80605272 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 24176000.

The previous prime is 80605267. The next prime is 80605289. The reversal of 80605272 is 27250608.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25153 + ... + 28175.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^80605272 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 80605272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111041280).

80605272 is an abundant number, since it is smaller than the sum of its proper divisors (141477288).

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

80605272 is a wasteful number, since it uses less digits than its factorization.

80605272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144 (or 3140 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 80605272 is about 8978.0438849451. The cubic root of 80605272 is about 431.9708913857.

The spelling of 80605272 in words is "eighty million, six hundred five thousand, two hundred seventy-two".