67105423 has 16 divisors (see below), whose sum is σ = 83890944. Its totient is φ = 52148160.

The previous prime is 67105399. The next prime is 67105439. The reversal of 67105423 is 32450176.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67105423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67105391 and 67105400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67105453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34236 + ... + 36142.

It is an arithmetic number, because the mean of its divisors is an integer number (5243184).

Almost surely, 2^67105423 is an apocalyptic number.

67105423 is a deficient number, since it is larger than the sum of its proper divisors (16785521).

67105423 is a wasteful number, since it uses less digits than its factorization.

67105423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 67105423 is about 8191.7899753351. The cubic root of 67105423 is about 406.3677235789.

Adding to 67105423 its reverse (32450176), we get a palindrome (99555599).

It can be divided in two parts, 67105 and 423, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 67105423 in words is "sixty-seven million, one hundred five thousand, four hundred twenty-three".