64087805 has 8 divisors (see below), whose sum is σ = 77068800. Its totient is φ = 51161296.

The previous prime is 64087801. The next prime is 64087823. The reversal of 64087805 is 50878046.

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 64087805 - 2² = 64087801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64087801) 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, 10985 + ... + 15774.

It is an arithmetic number, because the mean of its divisors is an integer number (9633600).

Almost surely, 2^64087805 is an apocalyptic number.

It is an amenable number.

64087805 is a deficient number, since it is larger than the sum of its proper divisors (12980995).

64087805 is a wasteful number, since it uses less digits than its factorization.

64087805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27243.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 64087805 is about 8005.4859315347. The cubic root of 64087805 is about 400.1828434912.

The spelling of 64087805 in words is "sixty-four million, eighty-seven thousand, eight hundred five".