85152079 has 4 divisors (see below), whose sum is σ = 86758776. Its totient is φ = 83545384.

The previous prime is 85152073. The next prime is 85152097. The reversal of 85152079 is 97025158.

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

It is not a de Polignac number, because 85152079 - 2⁷ = 85151951 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 (85152073) 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 3 ways as a sum of consecutive naturals, for example, 803269 + ... + 803374.

It is an arithmetic number, because the mean of its divisors is an integer number (21689694).

Almost surely, 2^85152079 is an apocalyptic number.

85152079 is a deficient number, since it is larger than the sum of its proper divisors (1606697).

85152079 is a wasteful number, since it uses less digits than its factorization.

85152079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606696.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 85152079 is about 9227.7884132657. The cubic root of 85152079 is about 439.9450327340.

The spelling of 85152079 in words is "eighty-five million, one hundred fifty-two thousand, seventy-nine".