80660929 has 4 divisors (see below), whose sum is σ = 80732160. Its totient is φ = 80589700.

The previous prime is 80660917. The next prime is 80660939. The reversal of 80660929 is 92906608.

It is a happy number.

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 80660929 - 2¹¹ = 80658881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80660891 and 80660900.

It is not an unprimeable number, because it can be changed into a prime (80660939) 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, 33889 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (20183040).

Almost surely, 2^80660929 is an apocalyptic number.

It is an amenable number.

80660929 is a deficient number, since it is larger than the sum of its proper divisors (71231).

80660929 is a wasteful number, since it uses less digits than its factorization.

80660929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71230.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 80660929 is about 8981.1429673511. The cubic root of 80660929 is about 432.0702921313.

The spelling of 80660929 in words is "eighty million, six hundred sixty thousand, nine hundred twenty-nine".