80202009 has 8 divisors (see below), whose sum is σ = 109423072. Its totient is φ = 52224480.

The previous prime is 80201981. The next prime is 80202019. The reversal of 80202009 is 90020208.

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

It is not a de Polignac number, because 80202009 - 2⁹ = 80201497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80202019) 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, 310732 + ... + 310989.

It is an arithmetic number, because the mean of its divisors is an integer number (13677884).

Almost surely, 2^80202009 is an apocalyptic number.

It is an amenable number.

80202009 is a deficient number, since it is larger than the sum of its proper divisors (29221063).

80202009 is a wasteful number, since it uses less digits than its factorization.

80202009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621767.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 80202009 is about 8955.5574365865. The cubic root of 80202009 is about 431.2493124963.

The spelling of 80202009 in words is "eighty million, two hundred two thousand, nine".