67872577 has 2 divisors, whose sum is σ = 67872578. Its totient is φ = 67872576.

The previous prime is 67872527. The next prime is 67872593. The reversal of 67872577 is 77527876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36108081 + 31764496 = 6009^2 + 5636^2 .

It is a cyclic number.

It is not a de Polignac number, because 67872577 - 2¹¹ = 67870529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67872577.

It is not a weakly prime, because it can be changed into another prime (67872527) 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, 33936288 + 33936289.

It is an arithmetic number, because the mean of its divisors is an integer number (33936289).

Almost surely, 2^67872577 is an apocalyptic number.

It is an amenable number.

67872577 is a deficient number, since it is larger than the sum of its proper divisors (1).

67872577 is an equidigital number, since it uses as much as digits as its factorization.

67872577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152480, while the sum is 49.

The square root of 67872577 is about 8238.4814741553. The cubic root of 67872577 is about 407.9104013972.

The spelling of 67872577 in words is "sixty-seven million, eight hundred seventy-two thousand, five hundred seventy-seven".