86823101 has 2 divisors, whose sum is σ = 86823102. Its totient is φ = 86823100.

The previous prime is 86823083. The next prime is 86823109. The reversal of 86823101 is 10132868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 39075001 = 6910^2 + 6251^2 .

It is a cyclic number.

It is not a de Polignac number, because 86823101 - 2²² = 82628797 is a prime.

It is a super-3 number, since 3×86823101³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86823109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43411550 + 43411551.

It is an arithmetic number, because the mean of its divisors is an integer number (43411551).

Almost surely, 2^86823101 is an apocalyptic number.

It is an amenable number.

86823101 is a deficient number, since it is larger than the sum of its proper divisors (1).

86823101 is an equidigital number, since it uses as much as digits as its factorization.

86823101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 86823101 is about 9317.8914460301. The cubic root of 86823101 is about 442.8042335234.

Adding to 86823101 its reverse (10132868), we get a palindrome (96955969).

The spelling of 86823101 in words is "eighty-six million, eight hundred twenty-three thousand, one hundred one".