80389072 has 20 divisors (see below), whose sum is σ = 157506660. Its totient is φ = 39742208.

The previous prime is 80389051. The next prime is 80389109. The reversal of 80389072 is 27098308.

It can be written as a sum of positive squares in 2 ways, for example, as 30206016 + 50183056 = 5496^2 + 7084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26803 + ... + 29650.

It is an arithmetic number, because the mean of its divisors is an integer number (7875333).

Almost surely, 2^80389072 is an apocalyptic number.

It is an amenable number.

80389072 is a deficient number, since it is larger than the sum of its proper divisors (77117588).

80389072 is a wasteful number, since it uses less digits than its factorization.

80389072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56550 (or 56544 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 80389072 is about 8965.9953156356. The cubic root of 80389072 is about 431.5843338318.

The spelling of 80389072 in words is "eighty million, three hundred eighty-nine thousand, seventy-two".