68880002 has 4 divisors (see below), whose sum is σ = 103320006. Its totient is φ = 34440000.

The previous prime is 68880001. The next prime is 68880013. The reversal of 68880002 is 20008886.

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

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 2961841 = 8119^2 + 1721^2 .

It is not an unprimeable number, because it can be changed into a prime (68880001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17219999 + ... + 17220002.

Almost surely, 2^68880002 is an apocalyptic number.

68880002 is a deficient number, since it is larger than the sum of its proper divisors (34440004).

68880002 is a wasteful number, since it uses less digits than its factorization.

68880002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34440003.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 68880002 is about 8299.3976889892. The cubic root of 68880002 is about 409.9186870276.

Adding to 68880002 its reverse (20008886), we get a palindrome (88888888).

The spelling of 68880002 in words is "sixty-eight million, eight hundred eighty thousand, two".