68644606 has 16 divisors (see below), whose sum is σ = 114762960. Its totient is φ = 30602880.

The previous prime is 68644591. The next prime is 68644607. The reversal of 68644606 is 60644686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68644607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52485 + ... + 53776.

It is an arithmetic number, because the mean of its divisors is an integer number (7172685).

Almost surely, 2^68644606 is an apocalyptic number.

68644606 is a deficient number, since it is larger than the sum of its proper divisors (46118354).

68644606 is a wasteful number, since it uses less digits than its factorization.

68644606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106299.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 68644606 is about 8285.2040409395. The cubic root of 68644606 is about 409.4511911564.

The spelling of 68644606 in words is "sixty-eight million, six hundred forty-four thousand, six hundred six".