64304871 has 4 divisors (see below), whose sum is σ = 85739832. Its totient is φ = 42869912.

The previous prime is 64304843. The next prime is 64304893. The reversal of 64304871 is 17840346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64304871 - 2⁷ = 64304743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64304671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10717476 + ... + 10717481.

It is an arithmetic number, because the mean of its divisors is an integer number (21434958).

Almost surely, 2^64304871 is an apocalyptic number.

64304871 is a deficient number, since it is larger than the sum of its proper divisors (21434961).

64304871 is a wasteful number, since it uses less digits than its factorization.

64304871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21434960.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64304871 is about 8019.0317994132. The cubic root of 64304871 is about 400.6341420451.

The spelling of 64304871 in words is "sixty-four million, three hundred four thousand, eight hundred seventy-one".