68800001 has 4 divisors (see below), whose sum is σ = 68840004. Its totient is φ = 68760000.

The previous prime is 68799967. The next prime is 68800013. The reversal of 68800001 is 10000886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16974400 + 51825601 = 4120^2 + 7199^2 .

It is a cyclic number.

It is not a de Polignac number, because 68800001 - 2¹⁸ = 68537857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68800001.

It is not an unprimeable number, because it can be changed into a prime (68800051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17300 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (17210001).

Almost surely, 2^68800001 is an apocalyptic number.

It is an amenable number.

68800001 is a deficient number, since it is larger than the sum of its proper divisors (40003).

68800001 is a wasteful number, since it uses less digits than its factorization.

68800001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40002.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 68800001 is about 8294.5766016114. The cubic root of 68800001 is about 409.7599248889.

Adding to 68800001 its reverse (10000886), we get a palindrome (78800887).

The spelling of 68800001 in words is "sixty-eight million, eight hundred thousand, one".