80218807 has 4 divisors (see below), whose sum is σ = 80410680. Its totient is φ = 80026936.

The previous prime is 80218799. The next prime is 80218811. The reversal of 80218807 is 70881208.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80218807 - 2³ = 80218799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80218207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95308 + ... + 96145.

It is an arithmetic number, because the mean of its divisors is an integer number (20102670).

Almost surely, 2^80218807 is an apocalyptic number.

80218807 is a deficient number, since it is larger than the sum of its proper divisors (191873).

80218807 is a wasteful number, since it uses less digits than its factorization.

80218807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191872.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 80218807 is about 8956.4952408852. The cubic root of 80218807 is about 431.2794182270.

The spelling of 80218807 in words is "eighty million, two hundred eighteen thousand, eight hundred seven".