85760815 has 16 divisors (see below), whose sum is σ = 119545920. Its totient is φ = 57841920.

The previous prime is 85760809. The next prime is 85760819. The reversal of 85760815 is 51806758.

It is not a de Polignac number, because 85760815 - 2⁹ = 85760303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85760819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17950 + ... + 22219.

It is an arithmetic number, because the mean of its divisors is an integer number (7471620).

Almost surely, 2^85760815 is an apocalyptic number.

85760815 is a deficient number, since it is larger than the sum of its proper divisors (33785105).

85760815 is a wasteful number, since it uses less digits than its factorization.

85760815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40242.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 85760815 is about 9260.7135254256. The cubic root of 85760815 is about 440.9909055222.

The spelling of 85760815 in words is "eighty-five million, seven hundred sixty thousand, eight hundred fifteen".