2787934 has 4 divisors (see below), whose sum is σ = 4181904. Its totient is φ = 1393966.

The previous prime is 2787931. The next prime is 2787947. The reversal of 2787934 is 4397872.

2787934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696982 + ... + 696985.

It is an arithmetic number, because the mean of its divisors is an integer number (1045476).

2^2787934 is an apocalyptic number.

2787934 is a deficient number, since it is larger than the sum of its proper divisors (1393970).

2787934 is a wasteful number, since it uses less digits than its factorization.

2787934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393969.

The product of its digits is 84672, while the sum is 40.

The square root of 2787934 is about 1669.7107533941. The cubic root of 2787934 is about 140.7432243004.

It can be divided in two parts, 2787 and 934, that added together give a square (3721 = 61²).

The spelling of 2787934 in words is "two million, seven hundred eighty-seven thousand, nine hundred thirty-four".