3072697856 has 80 divisors (see below), whose sum is σ = 6411100080. Its totient is φ = 1469767680.

The previous prime is 3072697853. The next prime is 3072697883. The reversal of 3072697856 is 6587962703.

It is a super-2 number, since 2×3072697856² = 18882944228533993472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3072697798 and 3072697807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072697853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154255 + ... + 1156913.

It is an arithmetic number, because the mean of its divisors is an integer number (80138751).

Almost surely, 2^3072697856 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 3072697856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3205550040).

3072697856 is an abundant number, since it is smaller than the sum of its proper divisors (3338402224).

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

3072697856 is an equidigital number, since it uses as much as digits as its factorization.

3072697856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The square root of 3072697856 is about 55431.9209120521. The cubic root of 3072697856 is about 1453.8065430589.

The spelling of 3072697856 in words is "three billion, seventy-two million, six hundred ninety-seven thousand, eight hundred fifty-six".