67397623 has 2 divisors, whose sum is σ = 67397624. Its totient is φ = 67397622.

The previous prime is 67397621. The next prime is 67397633. The reversal of 67397623 is 32679376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67397623 - 2¹ = 67397621 is a prime.

Together with 67397621, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67397623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67397621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33698811 + 33698812.

It is an arithmetic number, because the mean of its divisors is an integer number (33698812).

Almost surely, 2^67397623 is an apocalyptic number.

67397623 is a deficient number, since it is larger than the sum of its proper divisors (1).

67397623 is an equidigital number, since it uses as much as digits as its factorization.

67397623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 43.

The square root of 67397623 is about 8209.6055325454. The cubic root of 67397623 is about 406.9566909749.

The spelling of 67397623 in words is "sixty-seven million, three hundred ninety-seven thousand, six hundred twenty-three".