67872523 has 2 divisors, whose sum is σ = 67872524. Its totient is φ = 67872522.

The previous prime is 67872509. The next prime is 67872527. The reversal of 67872523 is 32527876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67872523 - 2⁵ = 67872491 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (67872527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33936261 + 33936262.

It is an arithmetic number, because the mean of its divisors is an integer number (33936262).

Almost surely, 2^67872523 is an apocalyptic number.

67872523 is a deficient number, since it is larger than the sum of its proper divisors (1).

67872523 is an equidigital number, since it uses as much as digits as its factorization.

67872523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 67872523 is about 8238.4781968516. The cubic root of 67872523 is about 407.9102932182.

The spelling of 67872523 in words is "sixty-seven million, eight hundred seventy-two thousand, five hundred twenty-three".