80805029 has 8 divisors (see below), whose sum is σ = 86764608. Its totient is φ = 74979520.

The previous prime is 80805007. The next prime is 80805037. The reversal of 80805029 is 92050808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-80805029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80804986 and 80805004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80805059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32267 + ... + 34680.

It is an arithmetic number, because the mean of its divisors is an integer number (10845576).

Almost surely, 2^80805029 is an apocalyptic number.

It is an amenable number.

80805029 is a deficient number, since it is larger than the sum of its proper divisors (5959579).

80805029 is a wasteful number, since it uses less digits than its factorization.

80805029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67035.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 80805029 is about 8989.1617517987. The cubic root of 80805029 is about 432.3274355843.

The spelling of 80805029 in words is "eighty million, eight hundred five thousand, twenty-nine".