2854789 has 20 divisors (see below), whose sum is σ = 3529260. Its totient is φ = 2304960.

The previous prime is 2854781. The next prime is 2854799. The reversal of 2854789 is 9874582.

It can be written as a sum of positive squares in 2 ways, for example, as 693889 + 2160900 = 833^2 + 1470^2 .

It is not a de Polignac number, because 2854789 - 2³ = 2854781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2854781) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69609 + ... + 69649.

It is an arithmetic number, because the mean of its divisors is an integer number (176463).

2^2854789 is an apocalyptic number.

2854789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2854789 is a deficient number, since it is larger than the sum of its proper divisors (674471).

2854789 is an frugal number, since it uses more digits than its factorization.

2854789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 77 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 2854789 is about 1689.6120856575. The cubic root of 2854789 is about 141.8593628415.

The spelling of 2854789 in words is "two million, eight hundred fifty-four thousand, seven hundred eighty-nine".