647230608 has 160 divisors (see below), whose sum is σ = 1919877120. Its totient is φ = 208656000.

The previous prime is 647230589. The next prime is 647230627. The reversal of 647230608 is 806032746.

647230608 is a `hidden beast` number, since 6 + 47 + 2 + 3 + 0 + 608 = 666.

It is an interprime number because it is at equal distance from previous prime (647230589) and next prime (647230627).

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 31 ways as a sum of consecutive naturals, for example, 2578483 + ... + 2578733.

It is an arithmetic number, because the mean of its divisors is an integer number (11999232).

Almost surely, 2^647230608 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 647230608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959938560).

647230608 is an abundant number, since it is smaller than the sum of its proper divisors (1272646512).

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

647230608 is a wasteful number, since it uses less digits than its factorization.

647230608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 647230608 is about 25440.7273480929. The cubic root of 647230608 is about 865.0071203486.

The spelling of 647230608 in words is "six hundred forty-seven million, two hundred thirty thousand, six hundred eight".