683949089 has 2 divisors, whose sum is σ = 683949090. Its totient is φ = 683949088.

The previous prime is 683949067. The next prime is 683949127. The reversal of 683949089 is 980949386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591462400 + 92486689 = 24320^2 + 9617^2 .

It is a cyclic number.

It is not a de Polignac number, because 683949089 - 2¹⁶ = 683883553 is a prime.

It is not a weakly prime, because it can be changed into another prime (683949059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341974544 + 341974545.

It is an arithmetic number, because the mean of its divisors is an integer number (341974545).

Almost surely, 2^683949089 is an apocalyptic number.

It is an amenable number.

683949089 is a deficient number, since it is larger than the sum of its proper divisors (1).

683949089 is an equidigital number, since it uses as much as digits as its factorization.

683949089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 683949089 is about 26152.4203277632. The cubic root of 683949089 is about 881.0649508070.

The spelling of 683949089 in words is "six hundred eighty-three million, nine hundred forty-nine thousand, eighty-nine".