80104777 has 2 divisors, whose sum is σ = 80104778. Its totient is φ = 80104776.

The previous prime is 80104763. The next prime is 80104781. The reversal of 80104777 is 77740108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72863296 + 7241481 = 8536^2 + 2691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80104777 is a prime.

It is not a weakly prime, because it can be changed into another prime (80102777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40052388 + 40052389.

It is an arithmetic number, because the mean of its divisors is an integer number (40052389).

Almost surely, 2^80104777 is an apocalyptic number.

It is an amenable number.

80104777 is a deficient number, since it is larger than the sum of its proper divisors (1).

80104777 is an equidigital number, since it uses as much as digits as its factorization.

80104777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 80104777 is about 8950.1272057999. The cubic root of 80104777 is about 431.0749686112.

The spelling of 80104777 in words is "eighty million, one hundred four thousand, seven hundred seventy-seven".