80471221 has 8 divisors (see below), whose sum is σ = 83060640. Its totient is φ = 77922768.

The previous prime is 80471179. The next prime is 80471249. The reversal of 80471221 is 12217408.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80471221 - 2¹¹ = 80469173 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 (80471291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6226 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (10382580).

Almost surely, 2^80471221 is an apocalyptic number.

It is an amenable number.

80471221 is a deficient number, since it is larger than the sum of its proper divisors (2589419).

80471221 is a wasteful number, since it uses less digits than its factorization.

80471221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20483.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 80471221 is about 8970.5752881295. The cubic root of 80471221 is about 431.7312947333.

Adding to 80471221 its reverse (12217408), we get a palindrome (92688629).

The spelling of 80471221 in words is "eighty million, four hundred seventy-one thousand, two hundred twenty-one".