86221741 has 2 divisors, whose sum is σ = 86221742. Its totient is φ = 86221740.

The previous prime is 86221721. The next prime is 86221747. The reversal of 86221741 is 14712268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 585225 = 9254^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 86221741 - 2⁷ = 86221613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86221747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43110870 + 43110871.

It is an arithmetic number, because the mean of its divisors is an integer number (43110871).

Almost surely, 2^86221741 is an apocalyptic number.

It is an amenable number.

86221741 is a deficient number, since it is larger than the sum of its proper divisors (1).

86221741 is an equidigital number, since it uses as much as digits as its factorization.

86221741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 86221741 is about 9285.5662724467. The cubic root of 86221741 is about 441.7795372775.

The spelling of 86221741 in words is "eighty-six million, two hundred twenty-one thousand, seven hundred forty-one".