85058579 has 4 divisors (see below), whose sum is σ = 86868384. Its totient is φ = 83248776.

The previous prime is 85058569. The next prime is 85058609. The reversal of 85058579 is 97585058.

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

It is a cyclic number.

It is not a de Polignac number, because 85058579 - 2⁴ = 85058563 is a prime.

It is a super-2 number, since 2×85058579² = 14469923722998482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1809757 = 85058579 / (8 + 5 + 0 + 5 + 8 + 5 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85058509) 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, 904832 + ... + 904925.

It is an arithmetic number, because the mean of its divisors is an integer number (21717096).

Almost surely, 2^85058579 is an apocalyptic number.

85058579 is a deficient number, since it is larger than the sum of its proper divisors (1809805).

85058579 is a wasteful number, since it uses less digits than its factorization.

85058579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809804.

The product of its (nonzero) digits is 504000, while the sum is 47.

The square root of 85058579 is about 9222.7208024530. The cubic root of 85058579 is about 439.7839486827.

The spelling of 85058579 in words is "eighty-five million, fifty-eight thousand, five hundred seventy-nine".