85364887 has 2 divisors, whose sum is σ = 85364888. Its totient is φ = 85364886.

The previous prime is 85364879. The next prime is 85364953. The reversal of 85364887 is 78846358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85364887 - 2³ = 85364879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85364887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85364857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42682443 + 42682444.

It is an arithmetic number, because the mean of its divisors is an integer number (42682444).

Almost surely, 2^85364887 is an apocalyptic number.

85364887 is a deficient number, since it is larger than the sum of its proper divisors (1).

85364887 is an equidigital number, since it uses as much as digits as its factorization.

85364887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 85364887 is about 9239.3120414888. The cubic root of 85364887 is about 440.3112243696.

The spelling of 85364887 in words is "eighty-five million, three hundred sixty-four thousand, eight hundred eighty-seven".