680663401 has 8 divisors (see below), whose sum is σ = 747885600. Its totient is φ = 614331840.

The previous prime is 680663369. The next prime is 680663407. The reversal of 680663401 is 104366086.

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 680663401 - 2⁵ = 680663369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680663407) 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, 221056 + ... + 224113.

It is an arithmetic number, because the mean of its divisors is an integer number (93485700).

Almost surely, 2^680663401 is an apocalyptic number.

It is an amenable number.

680663401 is a deficient number, since it is larger than the sum of its proper divisors (67222199).

680663401 is a wasteful number, since it uses less digits than its factorization.

680663401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445319.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 680663401 is about 26089.5266534293. The cubic root of 680663401 is about 879.6518082710.

It can be divided in two parts, 6806 and 63401, that added together give a palindrome (70207).

The spelling of 680663401 in words is "six hundred eighty million, six hundred sixty-three thousand, four hundred one".