3556394 has 4 divisors (see below), whose sum is σ = 5334594. Its totient is φ = 1778196.

The previous prime is 3556393. The next prime is 3556447. The reversal of 3556394 is 4936553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4936553 = 229 ⋅21557.

It can be written as a sum of positive squares in only one way, i.e., 3150625 + 405769 = 1775^2 + 637^2 .

It is not an unprimeable number, because it can be changed into a prime (3556391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 889097 + ... + 889100.

Almost surely, 2^3556394 is an apocalyptic number.

3556394 is a deficient number, since it is larger than the sum of its proper divisors (1778200).

3556394 is a wasteful number, since it uses less digits than its factorization.

3556394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778199.

The product of its digits is 48600, while the sum is 35.

The square root of 3556394 is about 1885.8403962160. The cubic root of 3556394 is about 152.6405619721.

The spelling of 3556394 in words is "three million, five hundred fifty-six thousand, three hundred ninety-four".