85320377 has 2 divisors, whose sum is σ = 85320378. Its totient is φ = 85320376.

The previous prime is 85320353. The next prime is 85320419. The reversal of 85320377 is 77302358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66275881 + 19044496 = 8141^2 + 4364^2 .

It is a cyclic number.

It is not a de Polignac number, because 85320377 - 2⁸ = 85320121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85320307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42660188 + 42660189.

It is an arithmetic number, because the mean of its divisors is an integer number (42660189).

Almost surely, 2^85320377 is an apocalyptic number.

It is an amenable number.

85320377 is a deficient number, since it is larger than the sum of its proper divisors (1).

85320377 is an equidigital number, since it uses as much as digits as its factorization.

85320377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 85320377 is about 9236.9029982998. The cubic root of 85320377 is about 440.2346836883.

The spelling of 85320377 in words is "eighty-five million, three hundred twenty thousand, three hundred seventy-seven".