80073977 has 2 divisors, whose sum is σ = 80073978. Its totient is φ = 80073976.

The previous prime is 80073949. The next prime is 80073989. The reversal of 80073977 is 77937008.

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., 79941481 + 132496 = 8941^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 80073977 - 2¹⁰ = 80072953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80073997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036988 + 40036989.

It is an arithmetic number, because the mean of its divisors is an integer number (40036989).

Almost surely, 2^80073977 is an apocalyptic number.

It is an amenable number.

80073977 is a deficient number, since it is larger than the sum of its proper divisors (1).

80073977 is an equidigital number, since it uses as much as digits as its factorization.

80073977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 80073977 is about 8948.4063944369. The cubic root of 80073977 is about 431.0197126012.

The spelling of 80073977 in words is "eighty million, seventy-three thousand, nine hundred seventy-seven".