86177321 has 2 divisors, whose sum is σ = 86177322. Its totient is φ = 86177320.

The previous prime is 86177281. The next prime is 86177363. The reversal of 86177321 is 12377168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 6325225 = 8936^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 86177321 - 2⁶ = 86177257 is a prime.

It is not a weakly prime, because it can be changed into another prime (86177381) 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, 43088660 + 43088661.

It is an arithmetic number, because the mean of its divisors is an integer number (43088661).

Almost surely, 2^86177321 is an apocalyptic number.

It is an amenable number.

86177321 is a deficient number, since it is larger than the sum of its proper divisors (1).

86177321 is an equidigital number, since it uses as much as digits as its factorization.

86177321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The square root of 86177321 is about 9283.1740800224. The cubic root of 86177321 is about 441.7036584340.

The spelling of 86177321 in words is "eighty-six million, one hundred seventy-seven thousand, three hundred twenty-one".