67187423 has 2 divisors, whose sum is σ = 67187424. Its totient is φ = 67187422.

The previous prime is 67187389. The next prime is 67187431. The reversal of 67187423 is 32478176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67187423 - 2¹² = 67183327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67187443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33593711 + 33593712.

It is an arithmetic number, because the mean of its divisors is an integer number (33593712).

Almost surely, 2^67187423 is an apocalyptic number.

67187423 is a deficient number, since it is larger than the sum of its proper divisors (1).

67187423 is an equidigital number, since it uses as much as digits as its factorization.

67187423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 67187423 is about 8196.7934584202. The cubic root of 67187423 is about 406.5331776177.

It can be divided in two parts, 6718 and 7423, that added together give a palindrome (14141).

The spelling of 67187423 in words is "sixty-seven million, one hundred eighty-seven thousand, four hundred twenty-three".