2783426 has 4 divisors (see below), whose sum is σ = 4175142. Its totient is φ = 1391712.

The previous prime is 2783423. The next prime is 2783447. The reversal of 2783426 is 6243872.

2783426 is nontrivially palindromic in base 9.

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., 2059225 + 724201 = 1435^2 + 851^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2783392 and 2783401.

It is not an unprimeable number, because it can be changed into a prime (2783423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695855 + ... + 695858.

2^2783426 is an apocalyptic number.

2783426 is a deficient number, since it is larger than the sum of its proper divisors (1391716).

2783426 is a wasteful number, since it uses less digits than its factorization.

2783426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391715.

The product of its digits is 16128, while the sum is 32.

The square root of 2783426 is about 1668.3602728428. The cubic root of 2783426 is about 140.6673242808.

The spelling of 2783426 in words is "two million, seven hundred eighty-three thousand, four hundred twenty-six".