981077 has 2 divisors, whose sum is σ = 981078. Its totient is φ = 981076.

The previous prime is 981073. The next prime is 981091. The reversal of 981077 is 770189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579121 + 401956 = 761^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 981077 - 2² = 981073 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 (981073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490538 + 490539.

It is an arithmetic number, because the mean of its divisors is an integer number (490539).

2⁹⁸¹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

981077 is a deficient number, since it is larger than the sum of its proper divisors (1).

981077 is an equidigital number, since it uses as much as digits as its factorization.

981077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 981077 is about 990.4933114363. The cubic root of 981077 is about 99.3652123055.

The spelling of 981077 in words is "nine hundred eighty-one thousand, seventy-seven".