64956784 has 40 divisors (see below), whose sum is σ = 132134400. Its totient is φ = 30875328.

The previous prime is 64956757. The next prime is 64956791. The reversal of 64956784 is 48765946.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72789 + ... + 73675.

It is an arithmetic number, because the mean of its divisors is an integer number (3303360).

Almost surely, 2^64956784 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 64956784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66067200).

64956784 is an abundant number, since it is smaller than the sum of its proper divisors (67177616).

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

64956784 is a wasteful number, since it uses less digits than its factorization.

64956784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1111 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 64956784 is about 8059.5771601245. The cubic root of 64956784 is about 401.9834485731.

The spelling of 64956784 in words is "sixty-four million, nine hundred fifty-six thousand, seven hundred eighty-four".