85750807 has 2 divisors, whose sum is σ = 85750808. Its totient is φ = 85750806.

The previous prime is 85750801. The next prime is 85750817. The reversal of 85750807 is 70805758.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85750807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85750807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85750801) 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 as a sum of consecutive naturals, namely, 42875403 + 42875404.

It is an arithmetic number, because the mean of its divisors is an integer number (42875404).

Almost surely, 2^85750807 is an apocalyptic number.

85750807 is a deficient number, since it is larger than the sum of its proper divisors (1).

85750807 is an equidigital number, since it uses as much as digits as its factorization.

85750807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 85750807 is about 9260.1731625278. The cubic root of 85750807 is about 440.9737508008.

The spelling of 85750807 in words is "eighty-five million, seven hundred fifty thousand, eight hundred seven".