64287005 has 8 divisors (see below), whose sum is σ = 77908824. Its totient is φ = 50920000.

The previous prime is 64286993. The next prime is 64287011. The reversal of 64287005 is 50078246.

It can be written as a sum of positive squares in 4 ways, for example, as 19838116 + 44448889 = 4454^2 + 6667^2 .

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

It is not a de Polignac number, because 64287005 - 2⁸ = 64286749 is a prime.

It is a Duffinian number.

It is a congruent 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, 63146 + ... + 64155.

It is an arithmetic number, because the mean of its divisors is an integer number (9738603).

Almost surely, 2^64287005 is an apocalyptic number.

It is an amenable number.

64287005 is a deficient number, since it is larger than the sum of its proper divisors (13621819).

64287005 is a wasteful number, since it uses less digits than its factorization.

64287005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127407.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 64287005 is about 8017.9177471461. The cubic root of 64287005 is about 400.5970355115.

The spelling of 64287005 in words is "sixty-four million, two hundred eighty-seven thousand, five".