86663933 has 2 divisors, whose sum is σ = 86663934. Its totient is φ = 86663932.

The previous prime is 86663917. The next prime is 86663987. The reversal of 86663933 is 33936668.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59644729 + 27019204 = 7723^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 86663933 - 2⁴ = 86663917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86663233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331966 + 43331967.

It is an arithmetic number, because the mean of its divisors is an integer number (43331967).

Almost surely, 2^86663933 is an apocalyptic number.

It is an amenable number.

86663933 is a deficient number, since it is larger than the sum of its proper divisors (1).

86663933 is an equidigital number, since it uses as much as digits as its factorization.

86663933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 44.

The square root of 86663933 is about 9309.3465399028. The cubic root of 86663933 is about 442.5334784804.

The spelling of 86663933 in words is "eighty-six million, six hundred sixty-three thousand, nine hundred thirty-three".