930487438889 has 2 divisors, whose sum is σ = 930487438890. Its totient is φ = 930487438888.

The previous prime is 930487438877. The next prime is 930487438913. The reversal of 930487438889 is 988834784039.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 910243840489 + 20243598400 = 954067^2 + 142280^2 .

It is an emirp because it is prime and its reverse (988834784039) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-930487438889 is a prime.

It is not a weakly prime, because it can be changed into another prime (930487434889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465243719444 + 465243719445.

It is an arithmetic number, because the mean of its divisors is an integer number (465243719445).

Almost surely, 2^930487438889 is an apocalyptic number.

It is an amenable number.

930487438889 is a deficient number, since it is larger than the sum of its proper divisors (1).

930487438889 is an equidigital number, since it uses as much as digits as its factorization.

930487438889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 334430208, while the sum is 71.

The spelling of 930487438889 in words is "nine hundred thirty billion, four hundred eighty-seven million, four hundred thirty-eight thousand, eight hundred eighty-nine".