85813870 has 16 divisors (see below), whose sum is σ = 154728000. Its totient is φ = 34267104.

The previous prime is 85813867. The next prime is 85813879. The reversal of 85813870 is 7831858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85813879) 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, 870 + ... + 13129.

It is an arithmetic number, because the mean of its divisors is an integer number (9670500).

Almost surely, 2^85813870 is an apocalyptic number.

85813870 is a deficient number, since it is larger than the sum of its proper divisors (68914130).

85813870 is a wasteful number, since it uses less digits than its factorization.

85813870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14619.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 85813870 is about 9263.5776026328. The cubic root of 85813870 is about 441.0818248596.

The spelling of 85813870 in words is "eighty-five million, eight hundred thirteen thousand, eight hundred seventy".