683840881 has 8 divisors (see below), whose sum is σ = 689432544. Its totient is φ = 678270720.

The previous prime is 683840879. The next prime is 683840887. The reversal of 683840881 is 188048386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 683840881 - 2¹ = 683840879 is a prime.

It is a super-2 number, since 2×683840881² = 935276701053712322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683840887) 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 7 ways as a sum of consecutive naturals, for example, 61866 + ... + 72076.

It is an arithmetic number, because the mean of its divisors is an integer number (86179068).

Almost surely, 2^683840881 is an apocalyptic number.

It is an amenable number.

683840881 is a deficient number, since it is larger than the sum of its proper divisors (5591663).

683840881 is a wasteful number, since it uses less digits than its factorization.

683840881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 683840881 is about 26150.3514507932. The cubic root of 683840881 is about 881.0184837497.

The spelling of 683840881 in words is "six hundred eighty-three million, eight hundred forty thousand, eight hundred eighty-one".