64648859 has 8 divisors (see below), whose sum is σ = 72958320. Its totient is φ = 56744800.

The previous prime is 64648853. The next prime is 64648867. The reversal of 64648859 is 95884646.

It is a happy number.

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 64648859 - 2²⁰ = 63600283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64648853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101012 + ... + 101649.

It is an arithmetic number, because the mean of its divisors is an integer number (9119790).

Almost surely, 2^64648859 is an apocalyptic number.

64648859 is a deficient number, since it is larger than the sum of its proper divisors (8309461).

64648859 is a wasteful number, since it uses less digits than its factorization.

64648859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202701.

The product of its digits is 1658880, while the sum is 50.

The square root of 64648859 is about 8040.4514176755. The cubic root of 64648859 is about 401.3472468040.

The spelling of 64648859 in words is "sixty-four million, six hundred forty-eight thousand, eight hundred fifty-nine".