67671403 has 2 divisors, whose sum is σ = 67671404. Its totient is φ = 67671402.

The previous prime is 67671391. The next prime is 67671421. The reversal of 67671403 is 30417676.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67671403 is a prime.

It is not a weakly prime, because it can be changed into another prime (67671473) 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, 33835701 + 33835702.

It is an arithmetic number, because the mean of its divisors is an integer number (33835702).

Almost surely, 2^67671403 is an apocalyptic number.

67671403 is a deficient number, since it is larger than the sum of its proper divisors (1).

67671403 is an equidigital number, since it uses as much as digits as its factorization.

67671403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 67671403 is about 8226.2630033327. The cubic root of 67671403 is about 407.5069877232.

The spelling of 67671403 in words is "sixty-seven million, six hundred seventy-one thousand, four hundred three".