64493303 has 8 divisors (see below), whose sum is σ = 76248480. Its totient is φ = 53373600.

The previous prime is 64493279. The next prime is 64493323. The reversal of 64493303 is 30339446.

It is a happy number.

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

It is not a de Polignac number, because 64493303 - 2¹⁰ = 64492279 is a prime.

It is a super-2 number, since 2×64493303² = 8318772263699618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64493303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64493323) 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, 158648 + ... + 159053.

It is an arithmetic number, because the mean of its divisors is an integer number (9531060).

Almost surely, 2^64493303 is an apocalyptic number.

64493303 is a deficient number, since it is larger than the sum of its proper divisors (11755177).

64493303 is a wasteful number, since it uses less digits than its factorization.

64493303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317737.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 64493303 is about 8030.7722542729. The cubic root of 64493303 is about 401.0250853394.

The spelling of 64493303 in words is "sixty-four million, four hundred ninety-three thousand, three hundred three".