85423885 has 8 divisors (see below), whose sum is σ = 103806720. Its totient is φ = 67473744.

The previous prime is 85423873. The next prime is 85423889. The reversal of 85423885 is 58832458.

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 85423885 - 2⁵ = 85423853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85423889) 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, 107737 + ... + 108526.

It is an arithmetic number, because the mean of its divisors is an integer number (12975840).

Almost surely, 2^85423885 is an apocalyptic number.

It is an amenable number.

85423885 is a deficient number, since it is larger than the sum of its proper divisors (18382835).

85423885 is a wasteful number, since it uses less digits than its factorization.

85423885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216347.

The product of its digits is 307200, while the sum is 43.

The square root of 85423885 is about 9242.5042602100. The cubic root of 85423885 is about 440.4126380392.

The spelling of 85423885 in words is "eighty-five million, four hundred twenty-three thousand, eight hundred eighty-five".