64327505 has 8 divisors (see below), whose sum is σ = 84210624. Its totient is φ = 46783600.

The previous prime is 64327499. The next prime is 64327513. The reversal of 64327505 is 50572346.

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

It is not a de Polignac number, because 64327505 - 2¹² = 64323409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584741 + ... + 584850.

It is an arithmetic number, because the mean of its divisors is an integer number (10526328).

Almost surely, 2^64327505 is an apocalyptic number.

It is an amenable number.

64327505 is a deficient number, since it is larger than the sum of its proper divisors (19883119).

64327505 is a wasteful number, since it uses less digits than its factorization.

64327505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169607.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 64327505 is about 8020.4429428804. The cubic root of 64327505 is about 400.6811415405.

The spelling of 64327505 in words is "sixty-four million, three hundred twenty-seven thousand, five hundred five".