64794312 has 96 divisors (see below), whose sum is σ = 199817280. Its totient is φ = 18775680.

The previous prime is 64794307. The next prime is 64794319. The reversal of 64794312 is 21349746.

64794312 is a `hidden beast` number, since 647 + 9 + 4 + 3 + 1 + 2 = 666.

It is a super-3 number, since 3×64794312³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64794319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16438 + ... + 19994.

It is an arithmetic number, because the mean of its divisors is an integer number (2081430).

Almost surely, 2^64794312 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 64794312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99908640).

64794312 is an abundant number, since it is smaller than the sum of its proper divisors (135022968).

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

64794312 is a wasteful number, since it uses less digits than its factorization.

64794312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603 (or 3596 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 64794312 is about 8049.4914125055. The cubic root of 64794312 is about 401.6480174381.

The spelling of 64794312 in words is "sixty-four million, seven hundred ninety-four thousand, three hundred twelve".