85767937 has 2 divisors, whose sum is σ = 85767938. Its totient is φ = 85767936.

The previous prime is 85767931. The next prime is 85767949. The reversal of 85767937 is 73976758.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49575681 + 36192256 = 7041^2 + 6016^2 .

It is a cyclic number.

It is not a de Polignac number, because 85767937 - 2¹⁹ = 85243649 is a prime.

It is a super-2 number, since 2×85767937² = 14712278034471938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85767931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42883968 + 42883969.

It is an arithmetic number, because the mean of its divisors is an integer number (42883969).

Almost surely, 2^85767937 is an apocalyptic number.

It is an amenable number.

85767937 is a deficient number, since it is larger than the sum of its proper divisors (1).

85767937 is an equidigital number, since it uses as much as digits as its factorization.

85767937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 52.

The square root of 85767937 is about 9261.0980450484. The cubic root of 85767937 is about 441.0031125357.

The spelling of 85767937 in words is "eighty-five million, seven hundred sixty-seven thousand, nine hundred thirty-seven".