3504543421 has 4 divisors (see below), whose sum is σ = 3710693052. Its totient is φ = 3298393792.

The previous prime is 3504543409. The next prime is 3504543431. The reversal of 3504543421 is 1243454053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1243454053 = 2137 ⋅581869.

It can be written as a sum of positive squares in 2 ways, for example, as 2153980921 + 1350562500 = 46411^2 + 36750^2 .

It is a cyclic number.

It is not a de Polignac number, because 3504543421 - 2⁵ = 3504543389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504543431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103074790 + ... + 103074823.

It is an arithmetic number, because the mean of its divisors is an integer number (927673263).

Almost surely, 2^3504543421 is an apocalyptic number.

It is an amenable number.

3504543421 is a deficient number, since it is larger than the sum of its proper divisors (206149631).

3504543421 is a wasteful number, since it uses less digits than its factorization.

3504543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206149630.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 3504543421 is about 59199.1842933667. The cubic root of 3504543421 is about 1518.9511781552.

Adding to 3504543421 its reverse (1243454053), we get a palindrome (4747997474).

The spelling of 3504543421 in words is "three billion, five hundred four million, five hundred forty-three thousand, four hundred twenty-one".