64630603 has 2 divisors, whose sum is σ = 64630604. Its totient is φ = 64630602.

The previous prime is 64630541. The next prime is 64630613. The reversal of 64630603 is 30603646.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64630603 is a prime.

It is a super-2 number, since 2×64630603² = 8354229688287218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64630613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32315301 + 32315302.

It is an arithmetic number, because the mean of its divisors is an integer number (32315302).

Almost surely, 2^64630603 is an apocalyptic number.

64630603 is a deficient number, since it is larger than the sum of its proper divisors (1).

64630603 is an equidigital number, since it uses as much as digits as its factorization.

64630603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 64630603 is about 8039.3160778763. The cubic root of 64630603 is about 401.3094648269.

The spelling of 64630603 in words is "sixty-four million, six hundred thirty thousand, six hundred three".