2887916257 has 2 divisors, whose sum is σ = 2887916258. Its totient is φ = 2887916256.

The previous prime is 2887916237. The next prime is 2887916261. The reversal of 2887916257 is 7526197882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1643167296 + 1244748961 = 40536^2 + 35281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2887916257 - 2²³ = 2879527649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2887916198 and 2887916207.

It is not a weakly prime, because it can be changed into another prime (2887916237) 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 as a sum of consecutive naturals, namely, 1443958128 + 1443958129.

It is an arithmetic number, because the mean of its divisors is an integer number (1443958129).

Almost surely, 2^2887916257 is an apocalyptic number.

It is an amenable number.

2887916257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887916257 is an equidigital number, since it uses as much as digits as its factorization.

2887916257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The square root of 2887916257 is about 53739.3362165928. The cubic root of 2887916257 is about 1424.0597070831.

The spelling of 2887916257 in words is "two billion, eight hundred eighty-seven million, nine hundred sixteen thousand, two hundred fifty-seven".