2784994 has 4 divisors (see below), whose sum is σ = 4177494. Its totient is φ = 1392496.

The previous prime is 2784979. The next prime is 2784997. The reversal of 2784994 is 4994872.

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

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 12769 = 1665^2 + 113^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2784994.

It is not an unprimeable number, because it can be changed into a prime (2784997) 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 as a sum of consecutive naturals, namely, 696247 + ... + 696250.

2^2784994 is an apocalyptic number.

2784994 is a deficient number, since it is larger than the sum of its proper divisors (1392500).

2784994 is a wasteful number, since it uses less digits than its factorization.

2784994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392499.

The product of its digits is 145152, while the sum is 43.

The square root of 2784994 is about 1668.8301291623. The cubic root of 2784994 is about 140.6937335764.

It can be divided in two parts, 2 and 784994, that added together give a square (784996 = 886²).

The spelling of 2784994 in words is "two million, seven hundred eighty-four thousand, nine hundred ninety-four".