85148879 has 8 divisors (see below), whose sum is σ = 86544480. Its totient is φ = 83759616.

The previous prime is 85148873. The next prime is 85148887. The reversal of 85148879 is 97884158.

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

It is not a de Polignac number, because 85148879 - 2¹⁶ = 85083343 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 (85148873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30719 + ... + 33375.

It is an arithmetic number, because the mean of its divisors is an integer number (10818060).

Almost surely, 2^85148879 is an apocalyptic number.

85148879 is a deficient number, since it is larger than the sum of its proper divisors (1395601).

85148879 is a wasteful number, since it uses less digits than its factorization.

85148879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169.

The product of its digits is 645120, while the sum is 50.

The square root of 85148879 is about 9227.6150223121. The cubic root of 85148879 is about 439.9395216463.

The spelling of 85148879 in words is "eighty-five million, one hundred forty-eight thousand, eight hundred seventy-nine".