683664501 has 8 divisors (see below), whose sum is σ = 981672160. Its totient is φ = 420716592.

The previous prime is 683664497. The next prime is 683664511. The reversal of 683664501 is 105466386.

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

It is not a de Polignac number, because 683664501 - 2² = 683664497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 17529859 = 683664501 / (6 + 8 + 3 + 6 + 6 + 4 + 5 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 683664501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683664511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8764891 + ... + 8764968.

It is an arithmetic number, because the mean of its divisors is an integer number (122709020).

Almost surely, 2^683664501 is an apocalyptic number.

It is an amenable number.

683664501 is a deficient number, since it is larger than the sum of its proper divisors (298007659).

683664501 is a wasteful number, since it uses less digits than its factorization.

683664501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529875.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 683664501 is about 26146.9788120922. The cubic root of 683664501 is about 880.9427315261.

The spelling of 683664501 in words is "six hundred eighty-three million, six hundred sixty-four thousand, five hundred one".