68321001 has 16 divisors (see below), whose sum is σ = 104227200. Its totient is φ = 38995968.

The previous prime is 68320999. The next prime is 68321009. The reversal of 68321001 is 10012386.

It is not a de Polignac number, because 68321001 - 2¹ = 68320999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (68321009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28435 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (6514200).

Almost surely, 2^68321001 is an apocalyptic number.

It is an amenable number.

68321001 is a deficient number, since it is larger than the sum of its proper divisors (35906199).

68321001 is a wasteful number, since it uses less digits than its factorization.

68321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 68321001 is about 8265.6518799185. The cubic root of 68321001 is about 408.8067646478.

Adding to 68321001 its reverse (10012386), we get a palindrome (78333387).

The spelling of 68321001 in words is "sixty-eight million, three hundred twenty-one thousand, one".