80739736 has 32 divisors (see below), whose sum is σ = 188743680. Its totient is φ = 31456800.

The previous prime is 80739733. The next prime is 80739751. The reversal of 80739736 is 63793708.

It is a junction number, because it is equal to n+sod(n) for n = 80739692 and 80739701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80739731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64920 + ... + 66151.

It is an arithmetic number, because the mean of its divisors is an integer number (5898240).

Almost surely, 2^80739736 is an apocalyptic number.

It is an amenable number.

80739736 is an abundant number, since it is smaller than the sum of its proper divisors (108003944).

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

80739736 is a wasteful number, since it uses less digits than its factorization.

80739736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131095 (or 131091 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 80739736 is about 8985.5292554195. The cubic root of 80739736 is about 432.2109594935.

The spelling of 80739736 in words is "eighty million, seven hundred thirty-nine thousand, seven hundred thirty-six".