80221715 has 16 divisors (see below), whose sum is σ = 112361472. Its totient is φ = 53837664.

The previous prime is 80221699. The next prime is 80221717. The reversal of 80221715 is 51712208.

It is a cyclic number.

It is not a de Polignac number, because 80221715 - 2⁴ = 80221699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80221717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22739 + ... + 26028.

It is an arithmetic number, because the mean of its divisors is an integer number (7022592).

Almost surely, 2^80221715 is an apocalyptic number.

80221715 is a deficient number, since it is larger than the sum of its proper divisors (32139757).

80221715 is a wasteful number, since it uses less digits than its factorization.

80221715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48826.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 80221715 is about 8956.6575797001. The cubic root of 80221715 is about 431.2846295793.

The spelling of 80221715 in words is "eighty million, two hundred twenty-one thousand, seven hundred fifteen".