80976221 has 2 divisors, whose sum is σ = 80976222. Its totient is φ = 80976220.

The previous prime is 80976197. The next prime is 80976227. The reversal of 80976221 is 12267908.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75864100 + 5112121 = 8710^2 + 2261^2 .

It is a cyclic number.

It is not a de Polignac number, because 80976221 - 2¹⁸ = 80714077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80976227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40488110 + 40488111.

It is an arithmetic number, because the mean of its divisors is an integer number (40488111).

Almost surely, 2^80976221 is an apocalyptic number.

It is an amenable number.

80976221 is a deficient number, since it is larger than the sum of its proper divisors (1).

80976221 is an equidigital number, since it uses as much as digits as its factorization.

80976221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 80976221 is about 8998.6788474753. The cubic root of 80976221 is about 432.6325271304.

The spelling of 80976221 in words is "eighty million, nine hundred seventy-six thousand, two hundred twenty-one".