683808401 has 4 divisors (see below), whose sum is σ = 684220272. Its totient is φ = 683396532.

The previous prime is 683808361. The next prime is 683808409. The reversal of 683808401 is 104808386.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104808386 = 2 ⋅52404193.

It is a cyclic number.

It is not a de Polignac number, because 683808401 - 2⁶ = 683808337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683808409) 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 in 3 ways as a sum of consecutive naturals, for example, 203435 + ... + 206768.

It is an arithmetic number, because the mean of its divisors is an integer number (171055068).

Almost surely, 2^683808401 is an apocalyptic number.

It is an amenable number.

683808401 is a deficient number, since it is larger than the sum of its proper divisors (411871).

683808401 is a wasteful number, since it uses less digits than its factorization.

683808401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411870.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 683808401 is about 26149.7304192605. The cubic root of 683808401 is about 881.0045351182.

The spelling of 683808401 in words is "six hundred eighty-three million, eight hundred eight thousand, four hundred one".