85343887 has 2 divisors, whose sum is σ = 85343888. Its totient is φ = 85343886.

The previous prime is 85343879. The next prime is 85343903. The reversal of 85343887 is 78834358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85343887 - 2³ = 85343879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85343807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42671943 + 42671944.

It is an arithmetic number, because the mean of its divisors is an integer number (42671944).

Almost surely, 2^85343887 is an apocalyptic number.

85343887 is a deficient number, since it is larger than the sum of its proper divisors (1).

85343887 is an equidigital number, since it uses as much as digits as its factorization.

85343887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

The square root of 85343887 is about 9238.1755233379. The cubic root of 85343887 is about 440.2751154792.

It can be divided in two parts, 8534 and 3887, that added together give a palindrome (12421).

The spelling of 85343887 in words is "eighty-five million, three hundred forty-three thousand, eight hundred eighty-seven".