85180867 has 2 divisors, whose sum is σ = 85180868. Its totient is φ = 85180866.

The previous prime is 85180847. The next prime is 85180877. The reversal of 85180867 is 76808158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85180867 - 2²³ = 76792259 is a prime.

It is not a weakly prime, because it can be changed into another prime (85180847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42590433 + 42590434.

It is an arithmetic number, because the mean of its divisors is an integer number (42590434).

Almost surely, 2^85180867 is an apocalyptic number.

85180867 is a deficient number, since it is larger than the sum of its proper divisors (1).

85180867 is an equidigital number, since it uses as much as digits as its factorization.

85180867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 85180867 is about 9229.3481351610. The cubic root of 85180867 is about 439.9946056501.

It can be divided in two parts, 851 and 80867, that added together give a palindrome (81718).

The spelling of 85180867 in words is "eighty-five million, one hundred eighty thousand, eight hundred sixty-seven".