68067211 has 4 divisors (see below), whose sum is σ = 69351552. Its totient is φ = 66782872.

The previous prime is 68067199. The next prime is 68067229. The reversal of 68067211 is 11276086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11276086 = 2 ⋅5638043.

It is a cyclic number.

It is not a de Polignac number, because 68067211 - 2⁹ = 68066699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68067911) 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, 642091 + ... + 642196.

It is an arithmetic number, because the mean of its divisors is an integer number (17337888).

Almost surely, 2^68067211 is an apocalyptic number.

68067211 is a deficient number, since it is larger than the sum of its proper divisors (1284341).

68067211 is a wasteful number, since it uses less digits than its factorization.

68067211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284340.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 68067211 is about 8250.2855102111. The cubic root of 68067211 is about 408.2999424406.

The spelling of 68067211 in words is "sixty-eight million, sixty-seven thousand, two hundred eleven".