80338521 has 4 divisors (see below), whose sum is σ = 107118032. Its totient is φ = 53559012.

The previous prime is 80338519. The next prime is 80338529. The reversal of 80338521 is 12583308.

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 not a de Polignac number, because 80338521 - 2¹ = 80338519 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80338529) 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, 13389751 + ... + 13389756.

It is an arithmetic number, because the mean of its divisors is an integer number (26779508).

Almost surely, 2^80338521 is an apocalyptic number.

It is an amenable number.

80338521 is a deficient number, since it is larger than the sum of its proper divisors (26779511).

80338521 is a wasteful number, since it uses less digits than its factorization.

80338521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26779510.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 80338521 is about 8963.1758322595. The cubic root of 80338521 is about 431.4938505784.

The spelling of 80338521 in words is "eighty million, three hundred thirty-eight thousand, five hundred twenty-one".