80229977 has 2 divisors, whose sum is σ = 80229978. Its totient is φ = 80229976.

The previous prime is 80229971. The next prime is 80229997. The reversal of 80229977 is 77992208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67584841 + 12645136 = 8221^2 + 3556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80229977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80229971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40114988 + 40114989.

It is an arithmetic number, because the mean of its divisors is an integer number (40114989).

Almost surely, 2^80229977 is an apocalyptic number.

It is an amenable number.

80229977 is a deficient number, since it is larger than the sum of its proper divisors (1).

80229977 is an equidigital number, since it uses as much as digits as its factorization.

80229977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 80229977 is about 8957.1187889857. The cubic root of 80229977 is about 431.2994350107.

The spelling of 80229977 in words is "eighty million, two hundred twenty-nine thousand, nine hundred seventy-seven".