3437681 has 4 divisors (see below), whose sum is σ = 3702132. Its totient is φ = 3173232.

The previous prime is 3437669. The next prime is 3437699. The reversal of 3437681 is 1867343.

3437681 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.

It can be written as a sum of positive squares in 2 ways, for example, as 255025 + 3182656 = 505^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 3437681 - 2⁶ = 3437617 is a prime.

It is a super-2 number, since 2×3437681² = 23635301315522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3437641) 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, 132206 + ... + 132231.

It is an arithmetic number, because the mean of its divisors is an integer number (925533).

Almost surely, 2^3437681 is an apocalyptic number.

It is an amenable number.

3437681 is a deficient number, since it is larger than the sum of its proper divisors (264451).

3437681 is a wasteful number, since it uses less digits than its factorization.

3437681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264450.

The product of its digits is 12096, while the sum is 32.

The square root of 3437681 is about 1854.0984332014. The cubic root of 3437681 is about 150.9229172528.

The spelling of 3437681 in words is "three million, four hundred thirty-seven thousand, six hundred eighty-one".