64316005 has 8 divisors (see below), whose sum is σ = 83116152. Its totient is φ = 47494848.

The previous prime is 64315991. The next prime is 64316009. The reversal of 64316005 is 50061346.

It can be written as a sum of positive squares in 4 ways, for example, as 11303044 + 53012961 = 3362^2 + 7281^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64316005 - 2⁵ = 64315973 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 (64316009) 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, 494674 + ... + 494803.

It is an arithmetic number, because the mean of its divisors is an integer number (10389519).

Almost surely, 2^64316005 is an apocalyptic number.

64316005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64316005 is a deficient number, since it is larger than the sum of its proper divisors (18800147).

64316005 is a wasteful number, since it uses less digits than its factorization.

64316005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989495.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 64316005 is about 8019.7259928254. The cubic root of 64316005 is about 400.6572631713.

The spelling of 64316005 in words is "sixty-four million, three hundred sixteen thousand, five".