80211996 has 36 divisors (see below), whose sum is σ = 213431400. Its totient is φ = 25329888.

The previous prime is 80211979. The next prime is 80211997. The reversal of 80211996 is 69911208.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80211996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80211997) 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 11 ways as a sum of consecutive naturals, for example, 57951 + ... + 59318.

It is an arithmetic number, because the mean of its divisors is an integer number (5928650).

Almost surely, 2^80211996 is an apocalyptic number.

It is an amenable number.

80211996 is an abundant number, since it is smaller than the sum of its proper divisors (133219404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80211996 is a wasteful number, since it uses less digits than its factorization.

80211996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117298 (or 117293 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 80211996 is about 8956.1150059610. The cubic root of 80211996 is about 431.2672119154.

The spelling of 80211996 in words is "eighty million, two hundred eleven thousand, nine hundred ninety-six".