67936423 has 4 divisors (see below), whose sum is σ = 67958128. Its totient is φ = 67914720.

The previous prime is 67936417. The next prime is 67936433. The reversal of 67936423 is 32463976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67936423 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 (67936433) 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, 5163 + ... + 12748.

It is an arithmetic number, because the mean of its divisors is an integer number (16989532).

Almost surely, 2^67936423 is an apocalyptic number.

67936423 is a deficient number, since it is larger than the sum of its proper divisors (21705).

67936423 is a wasteful number, since it uses less digits than its factorization.

67936423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21704.

The product of its digits is 163296, while the sum is 40.

The square root of 67936423 is about 8242.3554279102. The cubic root of 67936423 is about 408.0382649457.

The spelling of 67936423 in words is "sixty-seven million, nine hundred thirty-six thousand, four hundred twenty-three".