664350627 has 8 divisors (see below), whose sum is σ = 899022016. Its totient is φ = 436289832.

The previous prime is 664350613. The next prime is 664350641. The reversal of 664350627 is 726053466.

It is an interprime number because it is at equal distance from previous prime (664350613) and next prime (664350641).

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

It is not a de Polignac number, because 664350627 - 2⁴ = 664350611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664350527) 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, 1652413 + ... + 1652814.

It is an arithmetic number, because the mean of its divisors is an integer number (112377752).

Almost surely, 2^664350627 is an apocalyptic number.

664350627 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

664350627 is a deficient number, since it is larger than the sum of its proper divisors (234671389).

664350627 is a wasteful number, since it uses less digits than its factorization.

664350627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305297.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 664350627 is about 25775.0000387973. Note that the first 4 decimals coincide. The cubic root of 664350627 is about 872.5676674858.

The spelling of 664350627 in words is "six hundred sixty-four million, three hundred fifty thousand, six hundred twenty-seven".