67641503 has 2 divisors, whose sum is σ = 67641504. Its totient is φ = 67641502.

The previous prime is 67641481. The next prime is 67641527. The reversal of 67641503 is 30514676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67641503 - 2²⁶ = 532639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67641503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67641533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33820751 + 33820752.

It is an arithmetic number, because the mean of its divisors is an integer number (33820752).

Almost surely, 2^67641503 is an apocalyptic number.

67641503 is a deficient number, since it is larger than the sum of its proper divisors (1).

67641503 is an equidigital number, since it uses as much as digits as its factorization.

67641503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 67641503 is about 8224.4454524302. The cubic root of 67641503 is about 407.4469611173.

The spelling of 67641503 in words is "sixty-seven million, six hundred forty-one thousand, five hundred three".