80729759 has 16 divisors (see below), whose sum is σ = 91290240. Its totient is φ = 70755360.

The previous prime is 80729749. The next prime is 80729773. The reversal of 80729759 is 95792708.

It is a cyclic number.

It is not a de Polignac number, because 80729759 - 2⁴ = 80729743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80729749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33224 + ... + 35570.

It is an arithmetic number, because the mean of its divisors is an integer number (5705640).

Almost surely, 2^80729759 is an apocalyptic number.

80729759 is a deficient number, since it is larger than the sum of its proper divisors (10560481).

80729759 is a wasteful number, since it uses less digits than its factorization.

80729759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 80729759 is about 8984.9740678535. The cubic root of 80729759 is about 432.1931560071.

The spelling of 80729759 in words is "eighty million, seven hundred twenty-nine thousand, seven hundred fifty-nine".