85159789 has 8 divisors (see below), whose sum is σ = 100048032. Its totient is φ = 71462640.

The previous prime is 85159771. The next prime is 85159819. The reversal of 85159789 is 98795158.

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 85159789 - 2⁷ = 85159661 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 (85159189) 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, 297619 + ... + 297904.

It is an arithmetic number, because the mean of its divisors is an integer number (12506004).

Almost surely, 2^85159789 is an apocalyptic number.

It is an amenable number.

85159789 is a deficient number, since it is larger than the sum of its proper divisors (14888243).

85159789 is a wasteful number, since it uses less digits than its factorization.

85159789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595547.

The product of its digits is 907200, while the sum is 52.

The square root of 85159789 is about 9228.2061637135. The cubic root of 85159789 is about 439.9583104440.

The spelling of 85159789 in words is "eighty-five million, one hundred fifty-nine thousand, seven hundred eighty-nine".