1380682889 has 2 divisors, whose sum is σ = 1380682890. Its totient is φ = 1380682888.

The previous prime is 1380682879. The next prime is 1380682943. The reversal of 1380682889 is 9882860831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1327873600 + 52809289 = 36440^2 + 7267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380682889 - 2⁴ = 1380682873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380682889.

It is not a weakly prime, because it can be changed into another prime (1380682819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690341444 + 690341445.

It is an arithmetic number, because the mean of its divisors is an integer number (690341445).

Almost surely, 2^1380682889 is an apocalyptic number.

It is an amenable number.

1380682889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380682889 is an equidigital number, since it uses as much as digits as its factorization.

1380682889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 1380682889 is about 37157.5414821810. The cubic root of 1380682889 is about 1113.5198949814.

The spelling of 1380682889 in words is "one billion, three hundred eighty million, six hundred eighty-two thousand, eight hundred eighty-nine".