664023346 has 8 divisors (see below), whose sum is σ = 1138325760. Its totient is φ = 284581428.

The previous prime is 664023341. The next prime is 664023377. The reversal of 664023346 is 643320466.

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

It is not an unprimeable number, because it can be changed into a prime (664023341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23715106 + ... + 23715133.

It is an arithmetic number, because the mean of its divisors is an integer number (142290720).

Almost surely, 2^664023346 is an apocalyptic number.

664023346 is a deficient number, since it is larger than the sum of its proper divisors (474302414).

664023346 is a wasteful number, since it uses less digits than its factorization.

664023346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47430248.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 664023346 is about 25768.6504497228. The cubic root of 664023346 is about 872.4243587597.

The spelling of 664023346 in words is "six hundred sixty-four million, twenty-three thousand, three hundred forty-six".