68071823 has 8 divisors (see below), whose sum is σ = 70086288. Its totient is φ = 66066624.

The previous prime is 68071819. The next prime is 68071831. The reversal of 68071823 is 32817086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68071823 - 2² = 68071819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68073823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14315 + ... + 18467.

It is an arithmetic number, because the mean of its divisors is an integer number (8760786).

Almost surely, 2^68071823 is an apocalyptic number.

68071823 is a deficient number, since it is larger than the sum of its proper divisors (2014465).

68071823 is a wasteful number, since it uses less digits than its factorization.

68071823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 68071823 is about 8250.5650109553. The cubic root of 68071823 is about 408.3091638987.

The spelling of 68071823 in words is "sixty-eight million, seventy-one thousand, eight hundred twenty-three".