2868557 has 2 divisors, whose sum is σ = 2868558. Its totient is φ = 2868556.

The previous prime is 2868539. The next prime is 2868571. The reversal of 2868557 is 7558682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 1394761 = 1214^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868557 - 2⁶ = 2868493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2868527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434278 + 1434279.

It is an arithmetic number, because the mean of its divisors is an integer number (1434279).

2^2868557 is an apocalyptic number.

It is an amenable number.

2868557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868557 is an equidigital number, since it uses as much as digits as its factorization.

2868557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

The square root of 2868557 is about 1693.6814930795. The cubic root of 2868557 is about 142.0870490529.

The spelling of 2868557 in words is "two million, eight hundred sixty-eight thousand, five hundred fifty-seven".