664708350 has 48 divisors (see below), whose sum is σ = 1735246080. Its totient is φ = 167925600.

The previous prime is 664708321. The next prime is 664708379. The reversal of 664708350 is 53807466.

It is an interprime number because it is at equal distance from previous prime (664708321) and next prime (664708379).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 664708299 and 664708308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113766 + ... + 119465.

It is an arithmetic number, because the mean of its divisors is an integer number (36150960).

Almost surely, 2^664708350 is an apocalyptic number.

664708350 is an abundant number, since it is smaller than the sum of its proper divisors (1070537730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664708350 is a wasteful number, since it uses less digits than its factorization.

664708350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233265 (or 233260 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 664708350 is about 25781.9384453536. The cubic root of 664708350 is about 872.7242522287.

The spelling of 664708350 in words is "six hundred sixty-four million, seven hundred eight thousand, three hundred fifty".