7297898256 has 160 divisors (see below), whose sum is σ = 23640451200. Its totient is φ = 2135185920.

The previous prime is 7297898219. The next prime is 7297898287. The reversal of 7297898256 is 6528987927.

7297898256 is a `hidden beast` number, since 7 + 297 + 8 + 98 + 256 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7297898193 and 7297898202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111330 + ... + 164286.

It is an arithmetic number, because the mean of its divisors is an integer number (147752820).

Almost surely, 2^7297898256 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 7297898256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11820225600).

7297898256 is an abundant number, since it is smaller than the sum of its proper divisors (16342552944).

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

7297898256 is a wasteful number, since it uses less digits than its factorization.

7297898256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53014 (or 53002 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 7297898256 is about 85427.7370413146. The cubic root of 7297898256 is about 1939.6912265867.

The spelling of 7297898256 in words is "seven billion, two hundred ninety-seven million, eight hundred ninety-eight thousand, two hundred fifty-six".