68615206 has 16 divisors (see below), whose sum is σ = 114670080. Its totient is φ = 30524680.

The previous prime is 68615203. The next prime is 68615221. The reversal of 68615206 is 60251686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68615203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32146 + ... + 34213.

It is an arithmetic number, because the mean of its divisors is an integer number (7166880).

Almost surely, 2^68615206 is an apocalyptic number.

68615206 is a deficient number, since it is larger than the sum of its proper divisors (46054874).

68615206 is a wasteful number, since it uses less digits than its factorization.

68615206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66419.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 68615206 is about 8283.4296037330. The cubic root of 68615206 is about 409.3927277912.

The spelling of 68615206 in words is "sixty-eight million, six hundred fifteen thousand, two hundred six".