86222537 has 2 divisors, whose sum is σ = 86222538. Its totient is φ = 86222536.

The previous prime is 86222533. The next prime is 86222569. The reversal of 86222537 is 73522268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 8976016 = 8789^2 + 2996^2 .

It is a cyclic number.

It is not a de Polignac number, because 86222537 - 2² = 86222533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86222497 and 86222506.

It is not a weakly prime, because it can be changed into another prime (86222531) 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, 43111268 + 43111269.

It is an arithmetic number, because the mean of its divisors is an integer number (43111269).

Almost surely, 2^86222537 is an apocalyptic number.

It is an amenable number.

86222537 is a deficient number, since it is larger than the sum of its proper divisors (1).

86222537 is an equidigital number, since it uses as much as digits as its factorization.

86222537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 86222537 is about 9285.6091345695. The cubic root of 86222537 is about 441.7808967778.

The spelling of 86222537 in words is "eighty-six million, two hundred twenty-two thousand, five hundred thirty-seven".