67842923 has 2 divisors, whose sum is σ = 67842924. Its totient is φ = 67842922.

The previous prime is 67842917. The next prime is 67842947. The reversal of 67842923 is 32924876.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67842923 - 2²⁰ = 66794347 is a prime.

It is not a weakly prime, because it can be changed into another prime (67842323) 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 as a sum of consecutive naturals, namely, 33921461 + 33921462.

It is an arithmetic number, because the mean of its divisors is an integer number (33921462).

Almost surely, 2^67842923 is an apocalyptic number.

67842923 is a deficient number, since it is larger than the sum of its proper divisors (1).

67842923 is an equidigital number, since it uses as much as digits as its factorization.

67842923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 67842923 is about 8236.6815526643. The cubic root of 67842923 is about 407.8509864482.

The spelling of 67842923 in words is "sixty-seven million, eight hundred forty-two thousand, nine hundred twenty-three".