80305385 has 8 divisors (see below), whose sum is σ = 96490440. Its totient is φ = 64161664.

The previous prime is 80305369. The next prime is 80305387. The reversal of 80305385 is 58350308.

It can be written as a sum of positive squares in 4 ways, for example, as 9560464 + 70744921 = 3092^2 + 8411^2 .

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 80305385 - 2⁴ = 80305369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80305387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5882 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (12061305).

Almost surely, 2^80305385 is an apocalyptic number.

It is an amenable number.

80305385 is a deficient number, since it is larger than the sum of its proper divisors (16185055).

80305385 is a wasteful number, since it uses less digits than its factorization.

80305385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 80305385 is about 8961.3271896522. The cubic root of 80305385 is about 431.4345185325.

The spelling of 80305385 in words is "eighty million, three hundred five thousand, three hundred eighty-five".