68706311 has 4 divisors (see below), whose sum is σ = 69055272. Its totient is φ = 68357352.

The previous prime is 68706277. The next prime is 68706331. The reversal of 68706311 is 11360786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11360786 = 2 ⋅5680393.

It is a cyclic number.

It is not a de Polignac number, because 68706311 - 2⁶ = 68706247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68706331) 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, 174185 + ... + 174578.

It is an arithmetic number, because the mean of its divisors is an integer number (17263818).

Almost surely, 2^68706311 is an apocalyptic number.

68706311 is a deficient number, since it is larger than the sum of its proper divisors (348961).

68706311 is a wasteful number, since it uses less digits than its factorization.

68706311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348960.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 68706311 is about 8288.9270113809. The cubic root of 68706311 is about 409.5738403621.

The spelling of 68706311 in words is "sixty-eight million, seven hundred six thousand, three hundred eleven".