85587851 has 2 divisors, whose sum is σ = 85587852. Its totient is φ = 85587850.

The previous prime is 85587847. The next prime is 85587863. The reversal of 85587851 is 15878558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85587851 - 2² = 85587847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85587796 and 85587805.

It is not a weakly prime, because it can be changed into another prime (85587871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42793925 + 42793926.

It is an arithmetic number, because the mean of its divisors is an integer number (42793926).

Almost surely, 2^85587851 is an apocalyptic number.

85587851 is a deficient number, since it is larger than the sum of its proper divisors (1).

85587851 is an equidigital number, since it uses as much as digits as its factorization.

85587851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448000, while the sum is 47.

The square root of 85587851 is about 9251.3702228373. The cubic root of 85587851 is about 440.6942397839.

The spelling of 85587851 in words is "eighty-five million, five hundred eighty-seven thousand, eight hundred fifty-one".