67213603 has 2 divisors, whose sum is σ = 67213604. Its totient is φ = 67213602.

The previous prime is 67213579. The next prime is 67213609. The reversal of 67213603 is 30631276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67213603 - 2¹⁷ = 67082531 is a prime.

It is not a weakly prime, because it can be changed into another prime (67213609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33606801 + 33606802.

It is an arithmetic number, because the mean of its divisors is an integer number (33606802).

Almost surely, 2^67213603 is an apocalyptic number.

67213603 is a deficient number, since it is larger than the sum of its proper divisors (1).

67213603 is an equidigital number, since it uses as much as digits as its factorization.

67213603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 67213603 is about 8198.3902688272. The cubic root of 67213603 is about 406.5859734935.

Adding to 67213603 its reverse (30631276), we get a palindrome (97844879).

The spelling of 67213603 in words is "sixty-seven million, two hundred thirteen thousand, six hundred three".