2864557 has 2 divisors, whose sum is σ = 2864558. Its totient is φ = 2864556.

The previous prime is 2864539. The next prime is 2864569. The reversal of 2864557 is 7554682.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2056356 + 808201 = 1434^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2864557 - 2¹⁵ = 2831789 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹³ + 8³ + 6² + 4⁵ + 5⁷ + 5⁹ + 7⁷ .

It is the 1693-rd Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2864527) by changing a digit.

It is a nontrivial repunit in base 1692.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432278 + 1432279.

It is an arithmetic number, because the mean of its divisors is an integer number (1432279).

2^2864557 is an apocalyptic number.

It is an amenable number.

2864557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2864557 is an equidigital number, since it uses as much as digits as its factorization.

2864557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 2864557 is about 1692.5002215657. The cubic root of 2864557 is about 142.0209748822.

The spelling of 2864557 in words is "two million, eight hundred sixty-four thousand, five hundred fifty-seven".