3504704421 has 4 divisors (see below), whose sum is σ = 4672939232. Its totient is φ = 2336469612.

The previous prime is 3504704393. The next prime is 3504704453. The reversal of 3504704421 is 1244074053.

3504704421 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 3504704421 - 2¹⁹ = 3504180133 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 (3504703421) 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, 584117401 + ... + 584117406.

It is an arithmetic number, because the mean of its divisors is an integer number (1168234808).

Almost surely, 2^3504704421 is an apocalyptic number.

It is an amenable number.

3504704421 is a deficient number, since it is larger than the sum of its proper divisors (1168234811).

3504704421 is a wasteful number, since it uses less digits than its factorization.

3504704421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168234810.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 3504704421 is about 59200.5440937835. The cubic root of 3504704421 is about 1518.9744381890.

Adding to 3504704421 its reverse (1244074053), we get a palindrome (4748778474).

The spelling of 3504704421 in words is "three billion, five hundred four million, seven hundred four thousand, four hundred twenty-one".