80889305 has 8 divisors (see below), whose sum is σ = 110933952. Its totient is φ = 55466928.

The previous prime is 80889293. The next prime is 80889307. The reversal of 80889305 is 50398808.

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 80889305 - 2⁶ = 80889241 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 (80889307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155527 + ... + 1155596.

It is an arithmetic number, because the mean of its divisors is an integer number (13866744).

Almost surely, 2^80889305 is an apocalyptic number.

It is an amenable number.

80889305 is a deficient number, since it is larger than the sum of its proper divisors (30044647).

80889305 is a wasteful number, since it uses less digits than its factorization.

80889305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311135.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 80889305 is about 8993.8481752807. The cubic root of 80889305 is about 432.4776827002.

The spelling of 80889305 in words is "eighty million, eight hundred eighty-nine thousand, three hundred five".