1487728589 has 2 divisors, whose sum is σ = 1487728590. Its totient is φ = 1487728588.

The previous prime is 1487728579. The next prime is 1487728609. The reversal of 1487728589 is 9858277841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824666089 + 663062500 = 28717^2 + 25750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487728589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487728549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743864294 + 743864295.

It is an arithmetic number, because the mean of its divisors is an integer number (743864295).

Almost surely, 2^1487728589 is an apocalyptic number.

It is an amenable number.

1487728589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487728589 is an equidigital number, since it uses as much as digits as its factorization.

1487728589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 59.

The square root of 1487728589 is about 38571.0848823312. The cubic root of 1487728589 is about 1141.5840779749.

The spelling of 1487728589 in words is "one billion, four hundred eighty-seven million, seven hundred twenty-eight thousand, five hundred eighty-nine".