106665593 has 2 divisors, whose sum is σ = 106665594. Its totient is φ = 106665592.

The previous prime is 106665589. The next prime is 106665617. The reversal of 106665593 is 395566601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105842944 + 822649 = 10288^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 106665593 - 2² = 106665589 is a prime.

It is a super-2 number, since 2×106665593² = 22755097460083298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106665593.

It is not a weakly prime, because it can be changed into another prime (106605593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53332796 + 53332797.

It is an arithmetic number, because the mean of its divisors is an integer number (53332797).

Almost surely, 2^106665593 is an apocalyptic number.

It is an amenable number.

106665593 is a deficient number, since it is larger than the sum of its proper divisors (1).

106665593 is an equidigital number, since it uses as much as digits as its factorization.

106665593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 106665593 is about 10327.9036110917. The cubic root of 106665593 is about 474.2508493776.

The spelling of 106665593 in words is "one hundred six million, six hundred sixty-five thousand, five hundred ninety-three".