80923829 has 4 divisors (see below), whose sum is σ = 92484384. Its totient is φ = 69363276.

The previous prime is 80923823. The next prime is 80923849. The reversal of 80923829 is 92832908.

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 80923829 - 2²⁴ = 64146613 is a prime.

It is a super-2 number, since 2×80923829² = 13097332200042482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80923823) 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, 5780267 + ... + 5780280.

It is an arithmetic number, because the mean of its divisors is an integer number (23121096).

Almost surely, 2^80923829 is an apocalyptic number.

It is an amenable number.

80923829 is a deficient number, since it is larger than the sum of its proper divisors (11560555).

80923829 is a wasteful number, since it uses less digits than its factorization.

80923829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560554.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 80923829 is about 8995.7672824501. The cubic root of 80923829 is about 432.5392018995.

The spelling of 80923829 in words is "eighty million, nine hundred twenty-three thousand, eight hundred twenty-nine".