85377233 has 2 divisors, whose sum is σ = 85377234. Its totient is φ = 85377232.

The previous prime is 85377209. The next prime is 85377269. The reversal of 85377233 is 33277358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70845889 + 14531344 = 8417^2 + 3812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85377233 is a prime.

It is not a weakly prime, because it can be changed into another prime (85377283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42688616 + 42688617.

It is an arithmetic number, because the mean of its divisors is an integer number (42688617).

Almost surely, 2^85377233 is an apocalyptic number.

It is an amenable number.

85377233 is a deficient number, since it is larger than the sum of its proper divisors (1).

85377233 is an equidigital number, since it uses as much as digits as its factorization.

85377233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 85377233 is about 9239.9801406713. The cubic root of 85377233 is about 440.3324501941.

The spelling of 85377233 in words is "eighty-five million, three hundred seventy-seven thousand, two hundred thirty-three".