80011829 has 4 divisors (see below), whose sum is σ = 80071980. Its totient is φ = 79951680.

The previous prime is 80011823. The next prime is 80011849. The reversal of 80011829 is 92811008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51868804 + 28143025 = 7202^2 + 5305^2 .

It is a cyclic number.

It is not a de Polignac number, because 80011829 - 2⁸ = 80011573 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 (80011823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28034 + ... + 30755.

It is an arithmetic number, because the mean of its divisors is an integer number (20017995).

Almost surely, 2^80011829 is an apocalyptic number.

It is an amenable number.

80011829 is a deficient number, since it is larger than the sum of its proper divisors (60151).

80011829 is a wasteful number, since it uses less digits than its factorization.

80011829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60150.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 80011829 is about 8944.9331467597. The cubic root of 80011829 is about 430.9081742997.

The spelling of 80011829 in words is "eighty million, eleven thousand, eight hundred twenty-nine".