664231435 has 8 divisors (see below), whose sum is σ = 910946016. Its totient is φ = 455472960.

The previous prime is 664231423. The next prime is 664231441. The reversal of 664231435 is 534132466.

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

It is not a de Polignac number, because 664231435 - 2¹⁷ = 664100363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664231435.

It is an unprimeable number.

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, 9488986 + ... + 9489055.

It is an arithmetic number, because the mean of its divisors is an integer number (113868252).

Almost surely, 2^664231435 is an apocalyptic number.

664231435 is a deficient number, since it is larger than the sum of its proper divisors (246714581).

664231435 is a wasteful number, since it uses less digits than its factorization.

664231435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18978053.

The product of its digits is 51840, while the sum is 34.

The square root of 664231435 is about 25772.6877721358. The cubic root of 664231435 is about 872.5154815358.

The spelling of 664231435 in words is "six hundred sixty-four million, two hundred thirty-one thousand, four hundred thirty-five".