3542921 has 4 divisors (see below), whose sum is σ = 3547344. Its totient is φ = 3538500.

The previous prime is 3542863. The next prime is 3542923. The reversal of 3542921 is 1292453.

3542921 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3542921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3542923) 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, 635 + ... + 2736.

It is an arithmetic number, because the mean of its divisors is an integer number (886836).

Almost surely, 2^3542921 is an apocalyptic number.

It is an amenable number.

3542921 is a deficient number, since it is larger than the sum of its proper divisors (4423).

3542921 is a wasteful number, since it uses less digits than its factorization.

3542921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422.

The product of its digits is 2160, while the sum is 26.

The square root of 3542921 is about 1882.2648591524. The cubic root of 3542921 is about 152.4475641636.

The spelling of 3542921 in words is "three million, five hundred forty-two thousand, nine hundred twenty-one".