664482497 has 16 divisors (see below), whose sum is σ = 800096640. Its totient is φ = 539094528.

The previous prime is 664482491. The next prime is 664482517. The reversal of 664482497 is 794284466.

664482497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 664482497 - 2⁶ = 664482433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664482491) 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, 267023 + ... + 269499.

It is an arithmetic number, because the mean of its divisors is an integer number (50006040).

Almost surely, 2^664482497 is an apocalyptic number.

It is an amenable number.

664482497 is a deficient number, since it is larger than the sum of its proper divisors (135614143).

664482497 is a wasteful number, since it uses less digits than its factorization.

664482497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its digits is 2322432, while the sum is 50.

The square root of 664482497 is about 25777.5580107969. The cubic root of 664482497 is about 872.6253969844.

The spelling of 664482497 in words is "six hundred sixty-four million, four hundred eighty-two thousand, four hundred ninety-seven".