2784874 has 8 divisors (see below), whose sum is σ = 4185540. Its totient is φ = 1389696.

The previous prime is 2784871. The next prime is 2784883. The reversal of 2784874 is 4784872.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 208849 = 1605^2 + 457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2784871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312 + ... + 2380.

2^2784874 is an apocalyptic number.

2784874 is a deficient number, since it is larger than the sum of its proper divisors (1400666).

2784874 is a wasteful number, since it uses less digits than its factorization.

2784874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744.

The product of its digits is 100352, while the sum is 40.

The square root of 2784874 is about 1668.7941754453. The cubic root of 2784874 is about 140.6917128072.

The spelling of 2784874 in words is "two million, seven hundred eighty-four thousand, eight hundred seventy-four".