67677361 has 2 divisors, whose sum is σ = 67677362. Its totient is φ = 67677360.

The previous prime is 67677353. The next prime is 67677367. The reversal of 67677361 is 16377676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66341025 + 1336336 = 8145^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 67677361 - 2³ = 67677353 is a prime.

It is not a weakly prime, because it can be changed into another prime (67677367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33838680 + 33838681.

It is an arithmetic number, because the mean of its divisors is an integer number (33838681).

Almost surely, 2^67677361 is an apocalyptic number.

It is an amenable number.

67677361 is a deficient number, since it is larger than the sum of its proper divisors (1).

67677361 is an equidigital number, since it uses as much as digits as its factorization.

67677361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 43.

The square root of 67677361 is about 8226.6251282042. The cubic root of 67677361 is about 407.5189467648.

The spelling of 67677361 in words is "sixty-seven million, six hundred seventy-seven thousand, three hundred sixty-one".