85948637 has 2 divisors, whose sum is σ = 85948638. Its totient is φ = 85948636.

The previous prime is 85948619. The next prime is 85948673. The reversal of 85948637 is 73684958.

Together with next prime (85948673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76282756 + 9665881 = 8734^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 85948637 - 2¹⁸ = 85686493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85948607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42974318 + 42974319.

It is an arithmetic number, because the mean of its divisors is an integer number (42974319).

Almost surely, 2^85948637 is an apocalyptic number.

It is an amenable number.

85948637 is a deficient number, since it is larger than the sum of its proper divisors (1).

85948637 is an equidigital number, since it uses as much as digits as its factorization.

85948637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 85948637 is about 9270.8487745190. The cubic root of 85948637 is about 441.3126041175.

The spelling of 85948637 in words is "eighty-five million, nine hundred forty-eight thousand, six hundred thirty-seven".