3556431 has 6 divisors (see below), whose sum is σ = 5137080. Its totient is φ = 2370948.

The previous prime is 3556393. The next prime is 3556447. The reversal of 3556431 is 1346553.

3556431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3556431 - 2⁶ = 3556367 is a prime.

It is a super-2 number, since 2×3556431² = 25296402915522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3556395 and 3556404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556031) 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 in 5 ways as a sum of consecutive naturals, for example, 197571 + ... + 197588.

It is an arithmetic number, because the mean of its divisors is an integer number (856180).

Almost surely, 2^3556431 is an apocalyptic number.

3556431 is a deficient number, since it is larger than the sum of its proper divisors (1580649).

3556431 is a wasteful number, since it uses less digits than its factorization.

3556431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395165 (or 395162 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 3556431 is about 1885.8502061405. The cubic root of 3556431 is about 152.6410913174.

It can be divided in two parts, 355 and 6431, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 3556431 in words is "three million, five hundred fifty-six thousand, four hundred thirty-one".