64348505 has 8 divisors (see below), whose sum is σ = 83158152. Its totient is φ = 47518848.

The previous prime is 64348483. The next prime is 64348517. The reversal of 64348505 is 50584346.

It can be written as a sum of positive squares in 4 ways, for example, as 2835856 + 61512649 = 1684^2 + 7843^2 .

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

It is not a de Polignac number, because 64348505 - 2¹⁶ = 64282969 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, 494924 + ... + 495053.

It is an arithmetic number, because the mean of its divisors is an integer number (10394769).

Almost surely, 2^64348505 is an apocalyptic number.

64348505 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64348505 is a deficient number, since it is larger than the sum of its proper divisors (18809647).

64348505 is a wasteful number, since it uses less digits than its factorization.

64348505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989995.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 64348505 is about 8021.7519906813. The cubic root of 64348505 is about 400.7247381767.

The spelling of 64348505 in words is "sixty-four million, three hundred forty-eight thousand, five hundred five".