680001013 has 8 divisors (see below), whose sum is σ = 717415200. Its totient is φ = 642749328.

The previous prime is 680000999. The next prime is 680001017. The reversal of 680001013 is 310100086.

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

It is not a de Polignac number, because 680001013 - 2²¹ = 677903861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680001017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31978 + ... + 48811.

It is an arithmetic number, because the mean of its divisors is an integer number (89676900).

Almost surely, 2^680001013 is an apocalyptic number.

It is an amenable number.

680001013 is a deficient number, since it is larger than the sum of its proper divisors (37414187).

680001013 is a wasteful number, since it uses less digits than its factorization.

680001013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81251.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 680001013 is about 26076.8290441917. The cubic root of 680001013 is about 879.3663710970.

Adding to 680001013 its reverse (310100086), we get a palindrome (990101099).

The spelling of 680001013 in words is "six hundred eighty million, one thousand, thirteen".