3403856 has 20 divisors (see below), whose sum is σ = 6630900. Its totient is φ = 1692672.

The previous prime is 3403853. The next prime is 3403871. The reversal of 3403856 is 6583043.

It can be written as a sum of positive squares in 2 ways, for example, as 1488400 + 1915456 = 1220^2 + 1384^2 .

It is a super-3 number, since 3×3403856³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3403853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3200 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (331545).

Almost surely, 2^3403856 is an apocalyptic number.

It is an amenable number.

3403856 is a deficient number, since it is larger than the sum of its proper divisors (3227044).

3403856 is a wasteful number, since it uses less digits than its factorization.

3403856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3403856 is about 1844.9541999735. The cubic root of 3403856 is about 150.4262836968.

Adding to 3403856 its reverse (6583043), we get a palindrome (9986899).

It can be divided in two parts, 34038 and 56, that multiplied together give a triangular number (1906128 = T₁₉₅₂).

The spelling of 3403856 in words is "three million, four hundred three thousand, eight hundred fifty-six".