80727359 has 4 divisors (see below), whose sum is σ = 81241704. Its totient is φ = 80213016.

The previous prime is 80727349. The next prime is 80727397. The reversal of 80727359 is 95372708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80727359 - 2⁴ = 80727343 is a prime.

It is a super-2 number, since 2×80727359² = 13033812982229762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80727349) 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, 256937 + ... + 257250.

It is an arithmetic number, because the mean of its divisors is an integer number (20310426).

Almost surely, 2^80727359 is an apocalyptic number.

80727359 is a deficient number, since it is larger than the sum of its proper divisors (514345).

80727359 is a wasteful number, since it uses less digits than its factorization.

80727359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514344.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 80727359 is about 8984.8405105489. The cubic root of 80727359 is about 432.1888731013.

The spelling of 80727359 in words is "eighty million, seven hundred twenty-seven thousand, three hundred fifty-nine".