989010587 has 2 divisors, whose sum is σ = 989010588. Its totient is φ = 989010586.

The previous prime is 989010563. The next prime is 989010599. The reversal of 989010587 is 785010989.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989010587 - 2¹⁴ = 988994203 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (989010527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494505293 + 494505294.

It is an arithmetic number, because the mean of its divisors is an integer number (494505294).

Almost surely, 2^989010587 is an apocalyptic number.

989010587 is a deficient number, since it is larger than the sum of its proper divisors (1).

989010587 is an equidigital number, since it uses as much as digits as its factorization.

989010587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 989010587 is about 31448.5387100895. The cubic root of 989010587 is about 996.3233612272.

The spelling of 989010587 in words is "nine hundred eighty-nine million, ten thousand, five hundred eighty-seven".