64878360 has 96 divisors (see below), whose sum is σ = 200290320. Its totient is φ = 16806400.

The previous prime is 64878349. The next prime is 64878367. The reversal of 64878360 is 6387846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64878367) 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 23 ways as a sum of consecutive naturals, for example, 642310 + ... + 642410.

Almost surely, 2^64878360 is an apocalyptic number.

64878360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64878360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100145160).

64878360 is an abundant number, since it is smaller than the sum of its proper divisors (135411960).

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

64878360 is a wasteful number, since it uses less digits than its factorization.

64878360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 64878360 is about 8054.7104231003. The cubic root of 64878360 is about 401.8216084306.

The spelling of 64878360 in words is "sixty-four million, eight hundred seventy-eight thousand, three hundred sixty".