67040023 has 2 divisors, whose sum is σ = 67040024. Its totient is φ = 67040022.

The previous prime is 67040021. The next prime is 67040059. The reversal of 67040023 is 32004076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67040023 - 2¹ = 67040021 is a prime.

Together with 67040021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 67039976 and 67040003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33520011 + 33520012.

It is an arithmetic number, because the mean of its divisors is an integer number (33520012).

Almost surely, 2^67040023 is an apocalyptic number.

67040023 is a deficient number, since it is larger than the sum of its proper divisors (1).

67040023 is an equidigital number, since it uses as much as digits as its factorization.

67040023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 67040023 is about 8187.7972007128. The cubic root of 67040023 is about 406.2356672498.

Adding to 67040023 its reverse (32004076), we get a palindrome (99044099).

The spelling of 67040023 in words is "sixty-seven million, forty thousand, twenty-three".