64378303 has 8 divisors (see below), whose sum is σ = 74362320. Its totient is φ = 55082880.

The previous prime is 64378283. The next prime is 64378313. The reversal of 64378303 is 30387346.

It is a happy number.

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-64378303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64378313) 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, 171948 + ... + 172321.

It is an arithmetic number, because the mean of its divisors is an integer number (9295290).

Almost surely, 2^64378303 is an apocalyptic number.

64378303 is a deficient number, since it is larger than the sum of its proper divisors (9984017).

64378303 is a wasteful number, since it uses less digits than its factorization.

64378303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344297.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 64378303 is about 8023.6091006479. The cubic root of 64378303 is about 400.7865834523.

The spelling of 64378303 in words is "sixty-four million, three hundred seventy-eight thousand, three hundred three".