85342849 has 4 divisors (see below), whose sum is σ = 85526064. Its totient is φ = 85159636.

The previous prime is 85342847. The next prime is 85342861. The reversal of 85342849 is 94824358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94824358 = 2 ⋅47412179.

It is a cyclic number.

It is not a de Polignac number, because 85342849 - 2¹ = 85342847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85342847) 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 3 ways as a sum of consecutive naturals, for example, 90907 + ... + 91840.

It is an arithmetic number, because the mean of its divisors is an integer number (21381516).

Almost surely, 2^85342849 is an apocalyptic number.

It is an amenable number.

85342849 is a deficient number, since it is larger than the sum of its proper divisors (183215).

85342849 is a wasteful number, since it uses less digits than its factorization.

85342849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183214.

The product of its digits is 276480, while the sum is 43.

The square root of 85342849 is about 9238.1193432430. The cubic root of 85342849 is about 440.2733305147.

The spelling of 85342849 in words is "eighty-five million, three hundred forty-two thousand, eight hundred forty-nine".