3512421 has 24 divisors (see below), whose sum is σ = 5863104. Its totient is φ = 2002560.

The previous prime is 3512417. The next prime is 3512459. The reversal of 3512421 is 1242153.

3512421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3512421 - 2² = 3512417 is a prime.

3512421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3512394 and 3512403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3512401) 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 23 ways as a sum of consecutive naturals, for example, 640 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (244296).

Almost surely, 2^3512421 is an apocalyptic number.

It is an amenable number.

3512421 is a deficient number, since it is larger than the sum of its proper divisors (2350683).

3512421 is a wasteful number, since it uses less digits than its factorization.

3512421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2118 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 3512421 is about 1874.1454052447. The cubic root of 3512421 is about 152.0088435529.

Adding to 3512421 its reverse (1242153), we get a palindrome (4754574).

It can be divided in two parts, 351 and 2421, that added together give a palindrome (2772).

The spelling of 3512421 in words is "three million, five hundred twelve thousand, four hundred twenty-one".