85069841 has 4 divisors (see below), whose sum is σ = 85114932. Its totient is φ = 85024752.

The previous prime is 85069837. The next prime is 85069843. The reversal of 85069841 is 14896058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27081616 + 57988225 = 5204^2 + 7615^2 .

It is a cyclic number.

It is not a de Polignac number, because 85069841 - 2² = 85069837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85069843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19586 + ... + 23531.

It is an arithmetic number, because the mean of its divisors is an integer number (21278733).

Almost surely, 2^85069841 is an apocalyptic number.

It is an amenable number.

85069841 is a deficient number, since it is larger than the sum of its proper divisors (45091).

85069841 is a wasteful number, since it uses less digits than its factorization.

85069841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45090.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 85069841 is about 9223.3313395974. The cubic root of 85069841 is about 439.8033573785.

The spelling of 85069841 in words is "eighty-five million, sixty-nine thousand, eight hundred forty-one".