67315279 has 2 divisors, whose sum is σ = 67315280. Its totient is φ = 67315278.

The previous prime is 67315249. The next prime is 67315289. The reversal of 67315279 is 97251376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67315279 - 2⁷ = 67315151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67315219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33657639 + 33657640.

It is an arithmetic number, because the mean of its divisors is an integer number (33657640).

Almost surely, 2^67315279 is an apocalyptic number.

67315279 is a deficient number, since it is larger than the sum of its proper divisors (1).

67315279 is an equidigital number, since it uses as much as digits as its factorization.

67315279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 67315279 is about 8204.5888989029. The cubic root of 67315279 is about 406.7908883999.

The spelling of 67315279 in words is "sixty-seven million, three hundred fifteen thousand, two hundred seventy-nine".