80713321 has 4 divisors (see below), whose sum is σ = 86922052. Its totient is φ = 74504592.

The previous prime is 80713319. The next prime is 80713327. The reversal of 80713321 is 12331708.

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 33640000 + 47073321 = 5800^2 + 6861^2 .

It is a cyclic number.

It is not a de Polignac number, because 80713321 - 2¹ = 80713319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80713327) 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, 3104346 + ... + 3104371.

It is an arithmetic number, because the mean of its divisors is an integer number (21730513).

Almost surely, 2^80713321 is an apocalyptic number.

It is an amenable number.

80713321 is a deficient number, since it is larger than the sum of its proper divisors (6208731).

80713321 is a wasteful number, since it uses less digits than its factorization.

80713321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208730.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 80713321 is about 8984.0592718437. The cubic root of 80713321 is about 432.1638199711.

The spelling of 80713321 in words is "eighty million, seven hundred thirteen thousand, three hundred twenty-one".