64606752 has 144 divisors (see below), whose sum is σ = 213333120. Its totient is φ = 18164736.

The previous prime is 64606727. The next prime is 64606777. The reversal of 64606752 is 25760646.

64606752 is a `hidden beast` number, since 646 + 0 + 6 + 7 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (64606727) and next prime (64606777).

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146949 + ... + 147387.

It is an arithmetic number, because the mean of its divisors is an integer number (1481480).

Almost surely, 2^64606752 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 64606752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106666560).

64606752 is an abundant number, since it is smaller than the sum of its proper divisors (148726368).

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

64606752 is a wasteful number, since it uses less digits than its factorization.

64606752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 64606752 is about 8037.8325436650. The cubic root of 64606752 is about 401.2600929129.

The spelling of 64606752 in words is "sixty-four million, six hundred six thousand, seven hundred fifty-two".