64606603 has 2 divisors, whose sum is σ = 64606604. Its totient is φ = 64606602.

The previous prime is 64606601. The next prime is 64606621. The reversal of 64606603 is 30660646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64606603 - 2¹ = 64606601 is a prime.

Together with 64606601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64606601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32303301 + 32303302.

It is an arithmetic number, because the mean of its divisors is an integer number (32303302).

Almost surely, 2^64606603 is an apocalyptic number.

64606603 is a deficient number, since it is larger than the sum of its proper divisors (1).

64606603 is an equidigital number, since it uses as much as digits as its factorization.

64606603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 64606603 is about 8037.8232749918. The cubic root of 64606603 is about 401.2597844426.

The spelling of 64606603 in words is "sixty-four million, six hundred six thousand, six hundred three".