2864569 has 2 divisors, whose sum is σ = 2864570. Its totient is φ = 2864568.

The previous prime is 2864557. The next prime is 2864599. The reversal of 2864569 is 9654682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 659344 = 1485^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 2864569 - 2⁷ = 2864441 is a prime.

It is a super-2 number, since 2×2864569² = 16411511111522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2864539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432284 + 1432285.

It is an arithmetic number, because the mean of its divisors is an integer number (1432285).

2^2864569 is an apocalyptic number.

It is an amenable number.

2864569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2864569 is an equidigital number, since it uses as much as digits as its factorization.

2864569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 2864569 is about 1692.5037666132. The cubic root of 2864569 is about 142.0211731967.

The spelling of 2864569 in words is "two million, eight hundred sixty-four thousand, five hundred sixty-nine".