2783898 has 24 divisors (see below), whose sum is σ = 6496308. Its totient is φ = 856512.

The previous prime is 2783887. The next prime is 2783909. The reversal of 2783898 is 8983872.

It is an interprime number because it is at equal distance from previous prime (2783887) and next prime (2783909).

It can be written as a sum of positive squares in 2 ways, for example, as 2712609 + 71289 = 1647^2 + 267^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5715 + ... + 6182.

2^2783898 is an apocalyptic number.

2783898 is an abundant number, since it is smaller than the sum of its proper divisors (3712410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2783898 is a wasteful number, since it uses less digits than its factorization.

2783898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11918 (or 11915 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 2783898 is about 1668.5017231037. The cubic root of 2783898 is about 140.6752750610.

The spelling of 2783898 in words is "two million, seven hundred eighty-three thousand, eight hundred ninety-eight".