3545421 has 12 divisors (see below), whose sum is σ = 5196576. Its totient is φ = 2148520.

The previous prime is 3545411. The next prime is 3545429. The reversal of 3545421 is 1245453.

3545421 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 3545421 - 2⁶ = 3545357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3545391 and 3545400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545429) 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 11 ways as a sum of consecutive naturals, for example, 4521 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (433048).

Almost surely, 2^3545421 is an apocalyptic number.

It is an amenable number.

3545421 is a deficient number, since it is larger than the sum of its proper divisors (1651155).

3545421 is a wasteful number, since it uses less digits than its factorization.

3545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792 (or 9781 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 3545421 is about 1882.9288356175. The cubic root of 3545421 is about 152.4834130486.

Subtracting from 3545421 its reverse (1245453), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 354 and 5421, that added together give a palindrome (5775).

The spelling of 3545421 in words is "three million, five hundred forty-five thousand, four hundred twenty-one".