64822608 has 60 divisors (see below), whose sum is σ = 183250548. Its totient is φ = 21388800.

The previous prime is 64822607. The next prime is 64822679. The reversal of 64822608 is 80622846.

64822608 is a `hidden beast` number, since 6 + 48 + 2 + 2 + 608 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 9290304 = 7452^2 + 3048^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64822601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12316 + ... + 16772.

Almost surely, 2^64822608 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 64822608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91625274).

64822608 is an abundant number, since it is smaller than the sum of its proper divisors (118427940).

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

64822608 is a wasteful number, since it uses less digits than its factorization.

64822608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572 (or 4563 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 64822608 is about 8051.2488472286. The cubic root of 64822608 is about 401.7064761616.

The spelling of 64822608 in words is "sixty-four million, eight hundred twenty-two thousand, six hundred eight".