85329549 has 6 divisors (see below), whose sum is σ = 123253806. Its totient is φ = 56886360.

The previous prime is 85329533. The next prime is 85329557. The reversal of 85329549 is 94592358.

85329549 is a `hidden beast` number, since 85 + 3 + 29 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79655625 + 5673924 = 8925^2 + 2382^2 .

It is not a de Polignac number, because 85329549 - 2⁴ = 85329533 is a prime.

It is a super-2 number, since 2×85329549² = 14562263865086802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85329509) 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 5 ways as a sum of consecutive naturals, for example, 4740522 + ... + 4740539.

It is an arithmetic number, because the mean of its divisors is an integer number (20542301).

Almost surely, 2^85329549 is an apocalyptic number.

It is an amenable number.

85329549 is a deficient number, since it is larger than the sum of its proper divisors (37924257).

85329549 is a wasteful number, since it uses less digits than its factorization.

85329549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481067 (or 9481064 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 85329549 is about 9237.3994717128. The cubic root of 85329549 is about 440.2504583015.

It can be divided in two parts, 8532 and 9549, that added together give a palindrome (18081).

The spelling of 85329549 in words is "eighty-five million, three hundred twenty-nine thousand, five hundred forty-nine".