910489609 has 2 divisors, whose sum is σ = 910489610. Its totient is φ = 910489608.

The previous prime is 910489603. The next prime is 910489637. The reversal of 910489609 is 906984019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745290000 + 165199609 = 27300^2 + 12853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-910489609 is a prime.

It is not a weakly prime, because it can be changed into another prime (910489603) 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, 455244804 + 455244805.

It is an arithmetic number, because the mean of its divisors is an integer number (455244805).

Almost surely, 2^910489609 is an apocalyptic number.

It is an amenable number.

910489609 is a deficient number, since it is larger than the sum of its proper divisors (1).

910489609 is an equidigital number, since it uses as much as digits as its factorization.

910489609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 910489609 is about 30174.3203568863. The cubic root of 910489609 is about 969.2258708225.

The spelling of 910489609 in words is "nine hundred ten million, four hundred eighty-nine thousand, six hundred nine".