64946000 has 80 divisors (see below), whose sum is σ = 179512320. Its totient is φ = 22262400.

The previous prime is 64945987. The next prime is 64946027. The reversal of 64946000 is 64946.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11681 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (2243904).

Almost surely, 2^64946000 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 64946000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89756160).

64946000 is an abundant number, since it is smaller than the sum of its proper divisors (114566320).

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

64946000 is a wasteful number, since it uses less digits than its factorization.

64946000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 64946000 is about 8058.9081146269. The cubic root of 64946000 is about 401.9612018363.

64946000 divided by its reverse (64946) gives a cube (1000 = 10³).

The spelling of 64946000 in words is "sixty-four million, nine hundred forty-six thousand".