64780603 has 2 divisors, whose sum is σ = 64780604. Its totient is φ = 64780602.

The previous prime is 64780589. The next prime is 64780609. The reversal of 64780603 is 30608746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64780603 - 2⁹ = 64780091 is a prime.

It is not a weakly prime, because it can be changed into another prime (64780609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32390301 + 32390302.

It is an arithmetic number, because the mean of its divisors is an integer number (32390302).

Almost surely, 2^64780603 is an apocalyptic number.

64780603 is a deficient number, since it is larger than the sum of its proper divisors (1).

64780603 is an equidigital number, since it uses as much as digits as its factorization.

64780603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 64780603 is about 8048.6398229763. The cubic root of 64780603 is about 401.6196889173.

The spelling of 64780603 in words is "sixty-four million, seven hundred eighty thousand, six hundred three".