85066813 has 8 divisors (see below), whose sum is σ = 91744128. Its totient is φ = 78408624.

The previous prime is 85066799. The next prime is 85066829. The reversal of 85066813 is 31866058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85066813 - 2⁹ = 85066301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85066013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5256 + ... + 14062.

It is an arithmetic number, because the mean of its divisors is an integer number (11468016).

Almost surely, 2^85066813 is an apocalyptic number.

It is an amenable number.

85066813 is a deficient number, since it is larger than the sum of its proper divisors (6677315).

85066813 is a wasteful number, since it uses less digits than its factorization.

85066813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9563.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85066813 is about 9223.1671892035. The cubic root of 85066813 is about 439.7981391548.

The spelling of 85066813 in words is "eighty-five million, sixty-six thousand, eight hundred thirteen".