80810829 has 12 divisors (see below), whose sum is σ = 127338432. Its totient is φ = 48976200.

The previous prime is 80810827. The next prime is 80810833. The reversal of 80810829 is 92801808.

It is not a de Polignac number, because 80810829 - 2¹ = 80810827 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80810793 and 80810802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80810827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408037 + ... + 408234.

It is an arithmetic number, because the mean of its divisors is an integer number (10611536).

Almost surely, 2^80810829 is an apocalyptic number.

It is an amenable number.

80810829 is a deficient number, since it is larger than the sum of its proper divisors (46527603).

80810829 is a wasteful number, since it uses less digits than its factorization.

80810829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816288 (or 816285 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 80810829 is about 8989.4843567359. The cubic root of 80810829 is about 432.3377791614.

The spelling of 80810829 in words is "eighty million, eight hundred ten thousand, eight hundred twenty-nine".