985470077 has 2 divisors, whose sum is σ = 985470078. Its totient is φ = 985470076.

The previous prime is 985470071. The next prime is 985470119. The reversal of 985470077 is 770074589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972753721 + 12716356 = 31189^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 985470077 - 2⁴ = 985470061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985470071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492735038 + 492735039.

It is an arithmetic number, because the mean of its divisors is an integer number (492735039).

Almost surely, 2^985470077 is an apocalyptic number.

It is an amenable number.

985470077 is a deficient number, since it is larger than the sum of its proper divisors (1).

985470077 is an equidigital number, since it uses as much as digits as its factorization.

985470077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 985470077 is about 31392.1977089850. The cubic root of 985470077 is about 995.1330434960.

The spelling of 985470077 in words is "nine hundred eighty-five million, four hundred seventy thousand, seventy-seven".