664835486 has 32 divisors (see below), whose sum is σ = 1180858368. Its totient is φ = 274713120.

The previous prime is 664835477. The next prime is 664835489. The reversal of 664835486 is 684538466.

It is a happy number.

664835486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664835489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120116 + ... + 125528.

It is an arithmetic number, because the mean of its divisors is an integer number (36901824).

Almost surely, 2^664835486 is an apocalyptic number.

664835486 is a deficient number, since it is larger than the sum of its proper divisors (516022882).

664835486 is a wasteful number, since it uses less digits than its factorization.

664835486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736.

The product of its digits is 3317760, while the sum is 50.

The square root of 664835486 is about 25784.4039295075. The cubic root of 664835486 is about 872.7798894604.

The spelling of 664835486 in words is "six hundred sixty-four million, eight hundred thirty-five thousand, four hundred eighty-six".