86937229 has 2 divisors, whose sum is σ = 86937230. Its totient is φ = 86937228.

The previous prime is 86937223. The next prime is 86937239. The reversal of 86937229 is 92273968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81540900 + 5396329 = 9030^2 + 2323^2 .

It is a cyclic number.

It is not a de Polignac number, because 86937229 - 2⁵ = 86937197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86937223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43468614 + 43468615.

It is an arithmetic number, because the mean of its divisors is an integer number (43468615).

Almost surely, 2^86937229 is an apocalyptic number.

It is an amenable number.

86937229 is a deficient number, since it is larger than the sum of its proper divisors (1).

86937229 is an equidigital number, since it uses as much as digits as its factorization.

86937229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 86937229 is about 9324.0135671287. The cubic root of 86937229 is about 442.9981689852.

The spelling of 86937229 in words is "eighty-six million, nine hundred thirty-seven thousand, two hundred twenty-nine".