2869859 has 2 divisors, whose sum is σ = 2869860. Its totient is φ = 2869858.

The previous prime is 2869837. The next prime is 2869873. The reversal of 2869859 is 9589682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2869859 - 2¹⁶ = 2804323 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 8² + 6⁸ + 9⁴ + 8⁶ + 5⁸ + 9⁴ .

It is not a weakly prime, because it can be changed into another prime (2869879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434929 + 1434930.

It is an arithmetic number, because the mean of its divisors is an integer number (1434930).

2^2869859 is an apocalyptic number.

2869859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2869859 is an equidigital number, since it uses as much as digits as its factorization.

2869859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 2869859 is about 1694.0658192644. The cubic root of 2869859 is about 142.1085429441.

The spelling of 2869859 in words is "two million, eight hundred sixty-nine thousand, eight hundred fifty-nine".