683880661 has 8 divisors (see below), whose sum is σ = 724644800. Its totient is φ = 643593600.

The previous prime is 683880629. The next prime is 683880671. The reversal of 683880661 is 166088386.

It is a happy number.

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 683880661 - 2⁵ = 683880629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683880601) 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, 116316 + ... + 122053.

It is an arithmetic number, because the mean of its divisors is an integer number (90580600).

Almost surely, 2^683880661 is an apocalyptic number.

It is an amenable number.

683880661 is a deficient number, since it is larger than the sum of its proper divisors (40764139).

683880661 is a wasteful number, since it uses less digits than its factorization.

683880661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238539.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 683880661 is about 26151.1120413645. The cubic root of 683880661 is about 881.0355667860.

The spelling of 683880661 in words is "six hundred eighty-three million, eight hundred eighty thousand, six hundred sixty-one".