68019403 has 2 divisors, whose sum is σ = 68019404. Its totient is φ = 68019402.

The previous prime is 68019361. The next prime is 68019409. The reversal of 68019403 is 30491086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68019403 - 2²¹ = 65922251 is a prime.

It is not a weakly prime, because it can be changed into another prime (68019409) 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, 34009701 + 34009702.

It is an arithmetic number, because the mean of its divisors is an integer number (34009702).

Almost surely, 2^68019403 is an apocalyptic number.

68019403 is a deficient number, since it is larger than the sum of its proper divisors (1).

68019403 is an equidigital number, since it uses as much as digits as its factorization.

68019403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68019403 is about 8247.3876470068. The cubic root of 68019403 is about 408.2043282420.

The spelling of 68019403 in words is "sixty-eight million, nineteen thousand, four hundred three".