1360987889 has 2 divisors, whose sum is σ = 1360987890. Its totient is φ = 1360987888.

The previous prime is 1360987811. The next prime is 1360987913. The reversal of 1360987889 is 9887890631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1176490000 + 184497889 = 34300^2 + 13583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1360987889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1360987489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680493944 + 680493945.

It is an arithmetic number, because the mean of its divisors is an integer number (680493945).

Almost surely, 2^1360987889 is an apocalyptic number.

It is an amenable number.

1360987889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1360987889 is an equidigital number, since it uses as much as digits as its factorization.

1360987889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The square root of 1360987889 is about 36891.5693485653. The cubic root of 1360987889 is about 1108.1998495332.

The spelling of 1360987889 in words is "one billion, three hundred sixty million, nine hundred eighty-seven thousand, eight hundred eighty-nine".