80804129 has 8 divisors (see below), whose sum is σ = 96362880. Its totient is φ = 66249216.

The previous prime is 80804117. The next prime is 80804159. The reversal of 80804129 is 92140808.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80804129 - 2¹² = 80800033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80804095 and 80804104.

It is not an unprimeable number, because it can be changed into a prime (80804159) 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, 250784 + ... + 251105.

It is an arithmetic number, because the mean of its divisors is an integer number (12045360).

Almost surely, 2^80804129 is an apocalyptic number.

It is an amenable number.

80804129 is a deficient number, since it is larger than the sum of its proper divisors (15558751).

80804129 is a wasteful number, since it uses less digits than its factorization.

80804129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501919.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 80804129 is about 8989.1116913742. Note that the first 3 decimals coincide. The cubic root of 80804129 is about 432.3258305021.

The spelling of 80804129 in words is "eighty million, eight hundred four thousand, one hundred twenty-nine".