68911243 has 6 divisors (see below), whose sum is σ = 72038204. Its totient is φ = 65914596.

The previous prime is 68911231. The next prime is 68911247. The reversal of 68911243 is 34211986.

It is not a de Polignac number, because 68911243 - 2⁵ = 68911211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68911199 and 68911208.

It is not an unprimeable number, because it can be changed into a prime (68911247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64605 + ... + 65662.

Almost surely, 2^68911243 is an apocalyptic number.

68911243 is a deficient number, since it is larger than the sum of its proper divisors (3126961).

68911243 is a wasteful number, since it uses less digits than its factorization.

68911243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130313 (or 130290 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 68911243 is about 8301.2796001580. The cubic root of 68911243 is about 409.9806514764.

The spelling of 68911243 in words is "sixty-eight million, nine hundred eleven thousand, two hundred forty-three".