64716503 has 8 divisors (see below), whose sum is σ = 67619328. Its totient is φ = 61821144.

The previous prime is 64716497. The next prime is 64716517. The reversal of 64716503 is 30561746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64716503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64716503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64716583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23126 + ... + 25772.

It is an arithmetic number, because the mean of its divisors is an integer number (8452416).

Almost surely, 2^64716503 is an apocalyptic number.

64716503 is a deficient number, since it is larger than the sum of its proper divisors (2902825).

64716503 is a wasteful number, since it uses less digits than its factorization.

64716503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 64716503 is about 8044.6567981487. The cubic root of 64716503 is about 401.4871784813.

The spelling of 64716503 in words is "sixty-four million, seven hundred sixteen thousand, five hundred three".