2798366 has 4 divisors (see below), whose sum is σ = 4197552. Its totient is φ = 1399182.

The previous prime is 2798363. The next prime is 2798381. The reversal of 2798366 is 6638972.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699590 + ... + 699593.

It is an arithmetic number, because the mean of its divisors is an integer number (1049388).

2^2798366 is an apocalyptic number.

2798366 is a deficient number, since it is larger than the sum of its proper divisors (1399186).

2798366 is a wasteful number, since it uses less digits than its factorization.

2798366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399185.

The product of its digits is 108864, while the sum is 41.

The square root of 2798366 is about 1672.8317309281. The cubic root of 2798366 is about 140.9185519583.

Subtracting 2798366 from its reverse (6638972), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2798366 in words is "two million, seven hundred ninety-eight thousand, three hundred sixty-six".