359686661 has 2 divisors, whose sum is σ = 359686662. Its totient is φ = 359686660.

The previous prime is 359686651. The next prime is 359686709. The reversal of 359686661 is 166686953.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228584161 + 131102500 = 15119^2 + 11450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-359686661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (359686651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179843330 + 179843331.

It is an arithmetic number, because the mean of its divisors is an integer number (179843331).

Almost surely, 2^359686661 is an apocalyptic number.

It is an amenable number.

359686661 is a deficient number, since it is larger than the sum of its proper divisors (1).

359686661 is an equidigital number, since it uses as much as digits as its factorization.

359686661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 359686661 is about 18965.4069558235. The cubic root of 359686661 is about 711.1722096203.

The spelling of 359686661 in words is "three hundred fifty-nine million, six hundred eighty-six thousand, six hundred sixty-one".