2897347656 has 96 divisors (see below), whose sum is σ = 8631614880. Its totient is φ = 807609600.

The previous prime is 2897347627. The next prime is 2897347669. The reversal of 2897347656 is 6567437982.

It is a junction number, because it is equal to n+sod(n) for n = 2897347596 and 2897347605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18171 + ... + 78261.

It is an arithmetic number, because the mean of its divisors is an integer number (89912655).

Almost surely, 2^2897347656 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 2897347656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4315807440).

2897347656 is an abundant number, since it is smaller than the sum of its proper divisors (5734267224).

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

2897347656 is a wasteful number, since it uses less digits than its factorization.

2897347656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60155 (or 60144 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 57.

The square root of 2897347656 is about 53827.0160421326. The cubic root of 2897347656 is about 1425.6082608565.

The spelling of 2897347656 in words is "two billion, eight hundred ninety-seven million, three hundred forty-seven thousand, six hundred fifty-six".