80747628 has 24 divisors (see below), whose sum is σ = 202904688. Its totient is φ = 24845376.

The previous prime is 80747627. The next prime is 80747647. The reversal of 80747628 is 82674708.

It is a self number, because there is not a number n which added to its sum of digits gives 80747628.

It is not an unprimeable number, because it can be changed into a prime (80747627) 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 7 ways as a sum of consecutive naturals, for example, 258651 + ... + 258962.

It is an arithmetic number, because the mean of its divisors is an integer number (8454362).

Almost surely, 2^80747628 is an apocalyptic number.

It is an amenable number.

80747628 is an abundant number, since it is smaller than the sum of its proper divisors (122157060).

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

80747628 is a wasteful number, since it uses less digits than its factorization.

80747628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517633 (or 517631 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 80747628 is about 8985.9683952260. The cubic root of 80747628 is about 432.2250413567.

The spelling of 80747628 in words is "eighty million, seven hundred forty-seven thousand, six hundred twenty-eight".