2856047365 has 4 divisors (see below), whose sum is σ = 3427256844. Its totient is φ = 2284837888.

The previous prime is 2856047351. The next prime is 2856047387. The reversal of 2856047365 is 5637406582.

2856047365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 53442²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1028228356 + 1827819009 = 32066^2 + 42753^2 .

It is a cyclic number.

It is not a de Polignac number, because 2856047365 - 2⁷ = 2856047237 is a prime.

It is a super-2 number, since 2×2856047365² = 16314013102246886450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285604732 + ... + 285604741.

It is an arithmetic number, because the mean of its divisors is an integer number (856814211).

Almost surely, 2^2856047365 is an apocalyptic number.

It is an amenable number.

2856047365 is a deficient number, since it is larger than the sum of its proper divisors (571209479).

2856047365 is an equidigital number, since it uses as much as digits as its factorization.

2856047365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571209478.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 2856047365 is about 53442.0000093559. Note that the first 5 decimals coincide. The cubic root of 2856047365 is about 1418.8020321825.

The spelling of 2856047365 in words is "two billion, eight hundred fifty-six million, forty-seven thousand, three hundred sixty-five".