68466239 has 4 divisors (see below), whose sum is σ = 71443056. Its totient is φ = 65489424.

The previous prime is 68466163. The next prime is 68466241. The reversal of 68466239 is 93266486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93266486 = 2 ⋅46633243.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68466239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68466239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68466439) 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, 1488374 + ... + 1488419.

It is an arithmetic number, because the mean of its divisors is an integer number (17860764).

Almost surely, 2^68466239 is an apocalyptic number.

68466239 is a deficient number, since it is larger than the sum of its proper divisors (2976817).

68466239 is a wasteful number, since it uses less digits than its factorization.

68466239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976816.

The product of its digits is 373248, while the sum is 44.

The square root of 68466239 is about 8274.4328506551. The cubic root of 68466239 is about 409.0962425178.

The spelling of 68466239 in words is "sixty-eight million, four hundred sixty-six thousand, two hundred thirty-nine".