683980421 has 8 divisors (see below), whose sum is σ = 695227104. Its totient is φ = 672764400.

The previous prime is 683980393. The next prime is 683980441. The reversal of 683980421 is 124089386.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683980421 is a prime.

It is a super-2 number, since 2×683980421² = 935658432622674482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683980441) 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, 39686 + ... + 54248.

It is an arithmetic number, because the mean of its divisors is an integer number (86903388).

Almost surely, 2^683980421 is an apocalyptic number.

It is an amenable number.

683980421 is a deficient number, since it is larger than the sum of its proper divisors (11246683).

683980421 is a wasteful number, since it uses less digits than its factorization.

683980421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15331.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 683980421 is about 26153.0193476776. The cubic root of 683980421 is about 881.0784045888.

The spelling of 683980421 in words is "six hundred eighty-three million, nine hundred eighty thousand, four hundred twenty-one".