80389712 has 20 divisors (see below), whose sum is σ = 167736660. Its totient is φ = 37102848.

The previous prime is 80389709. The next prime is 80389723. The reversal of 80389712 is 21798308.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 65674816 = 3836^2 + 8104^2 .

It is a congruent number.

It is an unprimeable number.

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, 193037 + ... + 193452.

It is an arithmetic number, because the mean of its divisors is an integer number (8386833).

Almost surely, 2^80389712 is an apocalyptic number.

It is an amenable number.

80389712 is an abundant number, since it is smaller than the sum of its proper divisors (87346948).

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

80389712 is a wasteful number, since it uses less digits than its factorization.

80389712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386510 (or 386504 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 80389712 is about 8966.0310059691. The cubic root of 80389712 is about 431.5854791501.

The spelling of 80389712 in words is "eighty million, three hundred eighty-nine thousand, seven hundred twelve".