68427811 has 4 divisors (see below), whose sum is σ = 70096824. Its totient is φ = 66758800.

The previous prime is 68427809. The next prime is 68427833. The reversal of 68427811 is 11872486.

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

It is a cyclic number.

It is not a de Polignac number, because 68427811 - 2¹ = 68427809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68427841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834445 + ... + 834526.

It is an arithmetic number, because the mean of its divisors is an integer number (17524206).

Almost surely, 2^68427811 is an apocalyptic number.

68427811 is a deficient number, since it is larger than the sum of its proper divisors (1669013).

68427811 is a wasteful number, since it uses less digits than its factorization.

68427811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669012.

The product of its digits is 21504, while the sum is 37.

The square root of 68427811 is about 8272.1104320482. The cubic root of 68427811 is about 409.0196904695.

The spelling of 68427811 in words is "sixty-eight million, four hundred twenty-seven thousand, eight hundred eleven".