64663003 has 4 divisors (see below), whose sum is σ = 64697080. Its totient is φ = 64628928.

The previous prime is 64662991. The next prime is 64663009. The reversal of 64663003 is 30036646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30036646 = 2 ⋅15018323.

It is a cyclic number.

It is not a de Polignac number, because 64663003 - 2⁵ = 64662971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64663009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14013 + ... + 18046.

It is an arithmetic number, because the mean of its divisors is an integer number (16174270).

Almost surely, 2^64663003 is an apocalyptic number.

64663003 is a deficient number, since it is larger than the sum of its proper divisors (34077).

64663003 is a wasteful number, since it uses less digits than its factorization.

64663003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34076.

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

The square root of 64663003 is about 8041.3309221795. The cubic root of 64663003 is about 401.3765138404.

Adding to 64663003 its reverse (30036646), we get a palindrome (94699649).

The spelling of 64663003 in words is "sixty-four million, six hundred sixty-three thousand, three".