80810785 has 8 divisors (see below), whose sum is σ = 105788736. Its totient is φ = 58771440.

The previous prime is 80810783. The next prime is 80810789. The reversal of 80810785 is 58701808.

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

It is not a de Polignac number, because 80810785 - 2¹ = 80810783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80810783) 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, 734589 + ... + 734698.

It is an arithmetic number, because the mean of its divisors is an integer number (13223592).

Almost surely, 2^80810785 is an apocalyptic number.

It is an amenable number.

80810785 is a deficient number, since it is larger than the sum of its proper divisors (24977951).

80810785 is a wasteful number, since it uses less digits than its factorization.

80810785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469303.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 80810785 is about 8989.4819094317. The cubic root of 80810785 is about 432.3377006947.

The spelling of 80810785 in words is "eighty million, eight hundred ten thousand, seven hundred eighty-five".