80215000 has 80 divisors (see below), whose sum is σ = 191751120. Its totient is φ = 31440000.

The previous prime is 80214997. The next prime is 80215049. The reversal of 80215000 is 51208.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 304869 + ... + 305131.

It is an arithmetic number, because the mean of its divisors is an integer number (2396889).

Almost surely, 2^80215000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80215000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95875560).

80215000 is an abundant number, since it is smaller than the sum of its proper divisors (111536120).

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

80215000 is a wasteful number, since it uses less digits than its factorization.

80215000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 80215000 is about 8956.2827110359. The cubic root of 80215000 is about 431.2725956095.

Adding to 80215000 its reverse (51208), we get a palindrome (80266208).

The spelling of 80215000 in words is "eighty million, two hundred fifteen thousand".