86476861 has 2 divisors, whose sum is σ = 86476862. Its totient is φ = 86476860.

The previous prime is 86476837. The next prime is 86476883. The reversal of 86476861 is 16867468.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85914361 + 562500 = 9269^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 86476861 - 2⁵ = 86476829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86476801) 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, 43238430 + 43238431.

It is an arithmetic number, because the mean of its divisors is an integer number (43238431).

Almost surely, 2^86476861 is an apocalyptic number.

It is an amenable number.

86476861 is a deficient number, since it is larger than the sum of its proper divisors (1).

86476861 is an equidigital number, since it uses as much as digits as its factorization.

86476861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 46.

The square root of 86476861 is about 9299.2935753207. The cubic root of 86476861 is about 442.2148328096.

The spelling of 86476861 in words is "eighty-six million, four hundred seventy-six thousand, eight hundred sixty-one".