85058889 has 4 divisors (see below), whose sum is σ = 113411856. Its totient is φ = 56705924.

The previous prime is 85058879. The next prime is 85058891. The reversal of 85058889 is 98885058.

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 85058889 - 2⁴ = 85058873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85058849) 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, 14176479 + ... + 14176484.

It is an arithmetic number, because the mean of its divisors is an integer number (28352964).

Almost surely, 2^85058889 is an apocalyptic number.

It is an amenable number.

85058889 is a deficient number, since it is larger than the sum of its proper divisors (28352967).

85058889 is a wasteful number, since it uses less digits than its factorization.

85058889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28352966.

The product of its (nonzero) digits is 921600, while the sum is 51.

The square root of 85058889 is about 9222.7376087580. The cubic root of 85058889 is about 439.7844829531.

The spelling of 85058889 in words is "eighty-five million, fifty-eight thousand, eight hundred eighty-nine".