85750177 has 2 divisors, whose sum is σ = 85750178. Its totient is φ = 85750176.

The previous prime is 85750139. The next prime is 85750183. The reversal of 85750177 is 77105758.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 1679616 = 9169^2 + 1296^2 .

It is a cyclic number.

It is not a de Polignac number, because 85750177 - 2²³ = 77361569 is a prime.

It is not a weakly prime, because it can be changed into another prime (80750177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42875088 + 42875089.

It is an arithmetic number, because the mean of its divisors is an integer number (42875089).

Almost surely, 2^85750177 is an apocalyptic number.

It is an amenable number.

85750177 is a deficient number, since it is larger than the sum of its proper divisors (1).

85750177 is an equidigital number, since it uses as much as digits as its factorization.

85750177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 85750177 is about 9260.1391458228. The cubic root of 85750177 is about 440.9726708726.

The spelling of 85750177 in words is "eighty-five million, seven hundred fifty thousand, one hundred seventy-seven".