2816947457 has 2 divisors, whose sum is σ = 2816947458. Its totient is φ = 2816947456.

The previous prime is 2816947439. The next prime is 2816947493. The reversal of 2816947457 is 7547496182.

2816947457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1890597361 + 926350096 = 43481^2 + 30436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2816947457 - 2²⁰ = 2815898881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2816947399 and 2816947408.

It is not a weakly prime, because it can be changed into another prime (2816937457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1408473728 + 1408473729.

It is an arithmetic number, because the mean of its divisors is an integer number (1408473729).

Almost surely, 2^2816947457 is an apocalyptic number.

It is an amenable number.

2816947457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2816947457 is an equidigital number, since it uses as much as digits as its factorization.

2816947457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 2816947457 is about 53074.9230522287. The cubic root of 2816947457 is about 1412.2976901050.

The spelling of 2816947457 in words is "two billion, eight hundred sixteen million, nine hundred forty-seven thousand, four hundred fifty-seven".