67628677 has 2 divisors, whose sum is σ = 67628678. Its totient is φ = 67628676.

The previous prime is 67628653. The next prime is 67628681. The reversal of 67628677 is 77682676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35354916 + 32273761 = 5946^2 + 5681^2 .

It is a cyclic number.

It is not a de Polignac number, because 67628677 - 2⁷ = 67628549 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67628677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67628647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33814338 + 33814339.

It is an arithmetic number, because the mean of its divisors is an integer number (33814339).

Almost surely, 2^67628677 is an apocalyptic number.

It is an amenable number.

67628677 is a deficient number, since it is larger than the sum of its proper divisors (1).

67628677 is an equidigital number, since it uses as much as digits as its factorization.

67628677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 49.

The square root of 67628677 is about 8223.6656668423. The cubic root of 67628677 is about 407.4212064902.

The spelling of 67628677 in words is "sixty-seven million, six hundred twenty-eight thousand, six hundred seventy-seven".