64812200 has 48 divisors (see below), whose sum is σ = 151270080. Its totient is φ = 25824960.

The previous prime is 64812193. The next prime is 64812217. The reversal of 64812200 is 221846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72959 + ... + 73841.

It is an arithmetic number, because the mean of its divisors is an integer number (3151460).

Almost surely, 2^64812200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64812200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75635040).

64812200 is an abundant number, since it is smaller than the sum of its proper divisors (86457880).

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

64812200 is a wasteful number, since it uses less digits than its factorization.

64812200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 64812200 is about 8050.6024619279. The cubic root of 64812200 is about 401.6849755107.

The spelling of 64812200 in words is "sixty-four million, eight hundred twelve thousand, two hundred".