80091829 has 4 divisors (see below), whose sum is σ = 80224384. Its totient is φ = 79959276.

The previous prime is 80091799. The next prime is 80091853. The reversal of 80091829 is 92819008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80091829 - 2⁵ = 80091797 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 (80091899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65367 + ... + 66580.

It is an arithmetic number, because the mean of its divisors is an integer number (20056096).

Almost surely, 2^80091829 is an apocalyptic number.

It is an amenable number.

80091829 is a deficient number, since it is larger than the sum of its proper divisors (132555).

80091829 is a wasteful number, since it uses less digits than its factorization.

80091829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132554.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 80091829 is about 8949.4038348931. The cubic root of 80091829 is about 431.0517412846.

It can be divided in two parts, 800 and 91829, that added together give a palindrome (92629).

The spelling of 80091829 in words is "eighty million, ninety-one thousand, eight hundred twenty-nine".