664623300 has 72 divisors (see below), whose sum is σ = 2097803232. Its totient is φ = 161120000.

The previous prime is 664623277. The next prime is 664623319. The reversal of 664623300 is 3326466.

664623300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97401 + ... + 104000.

It is an arithmetic number, because the mean of its divisors is an integer number (29136156).

Almost surely, 2^664623300 is an apocalyptic number.

664623300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

664623300 is an abundant number, since it is smaller than the sum of its proper divisors (1433179932).

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

664623300 is a wasteful number, since it uses less digits than its factorization.

664623300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201429 (or 201422 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 664623300 is about 25780.2889820886. The cubic root of 664623300 is about 872.6870287038.

Adding to 664623300 its reverse (3326466), we get a palindrome (667949766).

The spelling of 664623300 in words is "six hundred sixty-four million, six hundred twenty-three thousand, three hundred".