85059829 has 2 divisors, whose sum is σ = 85059830. Its totient is φ = 85059828.

The previous prime is 85059817. The next prime is 85059833. The reversal of 85059829 is 92895058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 603729 = 9190^2 + 777^2 .

It is a cyclic number.

It is not a de Polignac number, because 85059829 - 2⁷ = 85059701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85059809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42529914 + 42529915.

It is an arithmetic number, because the mean of its divisors is an integer number (42529915).

Almost surely, 2^85059829 is an apocalyptic number.

It is an amenable number.

85059829 is a deficient number, since it is larger than the sum of its proper divisors (1).

85059829 is an equidigital number, since it uses as much as digits as its factorization.

85059829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 85059829 is about 9222.7885696247. The cubic root of 85059829 is about 439.7861029911.

The spelling of 85059829 in words is "eighty-five million, fifty-nine thousand, eight hundred twenty-nine".