85869875 has 32 divisors (see below), whose sum is σ = 131913600. Its totient is φ = 54345600.

The previous prime is 85869871. The next prime is 85869877. The reversal of 85869875 is 57896858.

It is not a de Polignac number, because 85869875 - 2² = 85869871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85869875.

It is not an unprimeable number, because it can be changed into a prime (85869871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7601 + ... + 15149.

It is an arithmetic number, because the mean of its divisors is an integer number (4122300).

Almost surely, 2^85869875 is an apocalyptic number.

85869875 is a deficient number, since it is larger than the sum of its proper divisors (46043725).

85869875 is a wasteful number, since it uses less digits than its factorization.

85869875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584 (or 7574 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 56.

The square root of 85869875 is about 9266.5999697840. The cubic root of 85869875 is about 441.1777589069.

The spelling of 85869875 in words is "eighty-five million, eight hundred sixty-nine thousand, eight hundred seventy-five".