80912085 has 8 divisors (see below), whose sum is σ = 129459360. Its totient is φ = 43153104.

The previous prime is 80912057. The next prime is 80912087. The reversal of 80912085 is 58021908.

It is a happy number.

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

It is not a de Polignac number, because 80912085 - 2¹² = 80907989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80912087) 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, 2697055 + ... + 2697084.

It is an arithmetic number, because the mean of its divisors is an integer number (16182420).

Almost surely, 2^80912085 is an apocalyptic number.

It is an amenable number.

80912085 is a deficient number, since it is larger than the sum of its proper divisors (48547275).

80912085 is a wasteful number, since it uses less digits than its factorization.

80912085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394147.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 80912085 is about 8995.1145073312. The cubic root of 80912085 is about 432.5182769293.

The spelling of 80912085 in words is "eighty million, nine hundred twelve thousand, eighty-five".