4397698656 has 240 divisors, whose sum is σ = 14663602800. Its totient is φ = 1281733632.

The previous prime is 4397698639. The next prime is 4397698667. The reversal of 4397698656 is 6568967934.

4397698656 is a `hidden beast` number, since 439 + 76 + 9 + 86 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4397698593 and 4397698602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 636790 + ... + 643658.

It is an arithmetic number, because the mean of its divisors is an integer number (61098345).

Almost surely, 2^4397698656 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 4397698656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7331801400).

4397698656 is an abundant number, since it is smaller than the sum of its proper divisors (10265904144).

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

4397698656 is a wasteful number, since it uses less digits than its factorization.

4397698656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923 (or 6906 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The square root of 4397698656 is about 66315.1465051537. The cubic root of 4397698656 is about 1638.3568034863.

The spelling of 4397698656 in words is "four billion, three hundred ninety-seven million, six hundred ninety-eight thousand, six hundred fifty-six".