85081069 has 4 divisors (see below), whose sum is σ = 89559040. Its totient is φ = 80603100.

The previous prime is 85081067. The next prime is 85081079. The reversal of 85081069 is 96018058.

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.

It is a cyclic number.

It is not a de Polignac number, because 85081069 - 2¹ = 85081067 is a prime.

It is a super-2 number, since 2×85081069² = 14477576604365522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85081067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2238957 + ... + 2238994.

It is an arithmetic number, because the mean of its divisors is an integer number (22389760).

Almost surely, 2^85081069 is an apocalyptic number.

It is an amenable number.

85081069 is a deficient number, since it is larger than the sum of its proper divisors (4477971).

85081069 is a wasteful number, since it uses less digits than its factorization.

85081069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477970.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 85081069 is about 9223.9399933000. The cubic root of 85081069 is about 439.8227057743.

The spelling of 85081069 in words is "eighty-five million, eighty-one thousand, sixty-nine".