85150789 has 2 divisors, whose sum is σ = 85150790. Its totient is φ = 85150788.

The previous prime is 85150763. The next prime is 85150823. The reversal of 85150789 is 98705158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78021889 + 7128900 = 8833^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 85150789 - 2²¹ = 83053637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85150729) 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, 42575394 + 42575395.

It is an arithmetic number, because the mean of its divisors is an integer number (42575395).

Almost surely, 2^85150789 is an apocalyptic number.

It is an amenable number.

85150789 is a deficient number, since it is larger than the sum of its proper divisors (1).

85150789 is an equidigital number, since it uses as much as digits as its factorization.

85150789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 85150789 is about 9227.7185154295. The cubic root of 85150789 is about 439.9428110934.

The spelling of 85150789 in words is "eighty-five million, one hundred fifty thousand, seven hundred eighty-nine".