366066989 has 2 divisors, whose sum is σ = 366066990. Its totient is φ = 366066988.

The previous prime is 366066947. The next prime is 366066991. The reversal of 366066989 is 989660663.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279892900 + 86174089 = 16730^2 + 9283^2 .

It is a cyclic number.

It is not a de Polignac number, because 366066989 - 2¹⁶ = 366001453 is a prime.

It is a super-2 number, since 2×366066989² = 268010080871052242, which contains 22 as substring.

Together with 366066991, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366066989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366066929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183033494 + 183033495.

It is an arithmetic number, because the mean of its divisors is an integer number (183033495).

Almost surely, 2^366066989 is an apocalyptic number.

It is an amenable number.

366066989 is a deficient number, since it is larger than the sum of its proper divisors (1).

366066989 is an equidigital number, since it uses as much as digits as its factorization.

366066989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 366066989 is about 19132.8771751663. The cubic root of 366066989 is about 715.3526478575.

The spelling of 366066989 in words is "three hundred sixty-six million, sixty-six thousand, nine hundred eighty-nine".