80724205 has 8 divisors (see below), whose sum is σ = 97020000. Its totient is φ = 64478736.

The previous prime is 80724199. The next prime is 80724221. The reversal of 80724205 is 50242708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80724205 - 2⁹ = 80723693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8955 + ... + 15544.

It is an arithmetic number, because the mean of its divisors is an integer number (12127500).

Almost surely, 2^80724205 is an apocalyptic number.

It is an amenable number.

80724205 is a deficient number, since it is larger than the sum of its proper divisors (16295795).

80724205 is a wasteful number, since it uses less digits than its factorization.

80724205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25163.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 80724205 is about 8984.6649909721. The cubic root of 80724205 is about 432.1832445202.

The spelling of 80724205 in words is "eighty million, seven hundred twenty-four thousand, two hundred five".