85001789 has 4 divisors (see below), whose sum is σ = 85045056. Its totient is φ = 84958524.

The previous prime is 85001759. The next prime is 85001809. The reversal of 85001789 is 98710058.

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 85001789 - 2⁸ = 85001533 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 (85001759) 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, 18539 + ... + 22664.

It is an arithmetic number, because the mean of its divisors is an integer number (21261264).

Almost surely, 2^85001789 is an apocalyptic number.

It is an amenable number.

85001789 is a deficient number, since it is larger than the sum of its proper divisors (43267).

85001789 is a wasteful number, since it uses less digits than its factorization.

85001789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43266.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 85001789 is about 9219.6414789296. The cubic root of 85001789 is about 439.6860518719.

The spelling of 85001789 in words is "eighty-five million, one thousand, seven hundred eighty-nine".