85859329 has 2 divisors, whose sum is σ = 85859330. Its totient is φ = 85859328.

The previous prime is 85859317. The next prime is 85859353. The reversal of 85859329 is 92395858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85655025 + 204304 = 9255^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 85859329 - 2⁷ = 85859201 is a prime.

It is not a weakly prime, because it can be changed into another prime (85859369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42929664 + 42929665.

It is an arithmetic number, because the mean of its divisors is an integer number (42929665).

Almost surely, 2^85859329 is an apocalyptic number.

It is an amenable number.

85859329 is a deficient number, since it is larger than the sum of its proper divisors (1).

85859329 is an equidigital number, since it uses as much as digits as its factorization.

85859329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 49.

The square root of 85859329 is about 9266.0309194390. The cubic root of 85859329 is about 441.1596972715.

The spelling of 85859329 in words is "eighty-five million, eight hundred fifty-nine thousand, three hundred twenty-nine".