881280077 has 2 divisors, whose sum is σ = 881280078. Its totient is φ = 881280076.

The previous prime is 881280073. The next prime is 881280083. The reversal of 881280077 is 770082188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865006921 + 16273156 = 29411^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 881280077 - 2² = 881280073 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 (881280073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440640038 + 440640039.

It is an arithmetic number, because the mean of its divisors is an integer number (440640039).

Almost surely, 2^881280077 is an apocalyptic number.

It is an amenable number.

881280077 is a deficient number, since it is larger than the sum of its proper divisors (1).

881280077 is an equidigital number, since it uses as much as digits as its factorization.

881280077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 881280077 is about 29686.3618013390. The cubic root of 881280077 is about 958.7483967774.

The spelling of 881280077 in words is "eight hundred eighty-one million, two hundred eighty thousand, seventy-seven".