80888809 has 8 divisors (see below), whose sum is σ = 82467072. Its totient is φ = 79322880.

The previous prime is 80888789. The next prime is 80888831. The reversal of 80888809 is 90888808.

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 80888809 - 2¹³ = 80880617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80888849) 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, 10752 + ... + 16654.

It is an arithmetic number, because the mean of its divisors is an integer number (10308384).

Almost surely, 2^80888809 is an apocalyptic number.

It is an amenable number.

80888809 is a deficient number, since it is larger than the sum of its proper divisors (1578263).

80888809 is a wasteful number, since it uses less digits than its factorization.

80888809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167.

The product of its (nonzero) digits is 294912, while the sum is 49.

The square root of 80888809 is about 8993.8206008348. The cubic root of 80888809 is about 432.4767987376.

Subtracting 80888809 from its reverse (90888808), we obtain a palindrome (9999999).

The spelling of 80888809 in words is "eighty million, eight hundred eighty-eight thousand, eight hundred nine".