85297329 has 12 divisors (see below), whose sum is σ = 132684916. Its totient is φ = 52490592.

The previous prime is 85297301. The next prime is 85297349. The reversal of 85297329 is 92379258.

It can be written as a sum of positive squares in 2 ways, for example, as 4297329 + 81000000 = 2073^2 + 9000^2 .

It is not a de Polignac number, because 85297329 - 2⁸ = 85297073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85297349) 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 in 11 ways as a sum of consecutive naturals, for example, 364402 + ... + 364635.

Almost surely, 2^85297329 is an apocalyptic number.

It is an amenable number.

85297329 is a deficient number, since it is larger than the sum of its proper divisors (47387587).

85297329 is a wasteful number, since it uses less digits than its factorization.

85297329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729056 (or 729053 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 85297329 is about 9235.6553097222. The cubic root of 85297329 is about 440.1950392207.

The spelling of 85297329 in words is "eighty-five million, two hundred ninety-seven thousand, three hundred twenty-nine".