3471681 has 4 divisors (see below), whose sum is σ = 4628912. Its totient is φ = 2314452.

The previous prime is 3471679. The next prime is 3471697. The reversal of 3471681 is 1861743.

It is a happy number.

3471681 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3471681 - 2¹ = 3471679 is a prime.

It is a super-2 number, since 2×3471681² = 24105137931522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3473681) 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 3 ways as a sum of consecutive naturals, for example, 578611 + ... + 578616.

It is an arithmetic number, because the mean of its divisors is an integer number (1157228).

Almost surely, 2^3471681 is an apocalyptic number.

It is an amenable number.

3471681 is a deficient number, since it is larger than the sum of its proper divisors (1157231).

3471681 is a wasteful number, since it uses less digits than its factorization.

3471681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157230.

The product of its digits is 4032, while the sum is 30.

The square root of 3471681 is about 1863.2447504287. The cubic root of 3471681 is about 151.4188479322.

The spelling of 3471681 in words is "three million, four hundred seventy-one thousand, six hundred eighty-one".