67662671 has 2 divisors, whose sum is σ = 67662672. Its totient is φ = 67662670.

The previous prime is 67662653. The next prime is 67662701. The reversal of 67662671 is 17626676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67662671 - 2¹⁰ = 67661647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67662611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33831335 + 33831336.

It is an arithmetic number, because the mean of its divisors is an integer number (33831336).

Almost surely, 2^67662671 is an apocalyptic number.

67662671 is a deficient number, since it is larger than the sum of its proper divisors (1).

67662671 is an equidigital number, since it uses as much as digits as its factorization.

67662671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 67662671 is about 8225.7322470404. The cubic root of 67662671 is about 407.4894593733.

The spelling of 67662671 in words is "sixty-seven million, six hundred sixty-two thousand, six hundred seventy-one".