683962909 has 4 divisors (see below), whose sum is σ = 781671904. Its totient is φ = 586253916.

The previous prime is 683962849. The next prime is 683962913. The reversal of 683962909 is 909269386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683962909 - 2⁷ = 683962781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683962949) 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 in 3 ways as a sum of consecutive naturals, for example, 48854487 + ... + 48854500.

It is an arithmetic number, because the mean of its divisors is an integer number (195417976).

Almost surely, 2^683962909 is an apocalyptic number.

It is an amenable number.

683962909 is a deficient number, since it is larger than the sum of its proper divisors (97708995).

683962909 is an equidigital number, since it uses as much as digits as its factorization.

683962909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97708994.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The square root of 683962909 is about 26152.6845467153. The cubic root of 683962909 is about 881.0708850867.

The spelling of 683962909 in words is "six hundred eighty-three million, nine hundred sixty-two thousand, nine hundred nine".