3452021 has 4 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 3448044.

The previous prime is 3452017. The next prime is 3452039. The reversal of 3452021 is 1202543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1202543 = 29 ⋅41467.

It is a cyclic number.

It is not a de Polignac number, because 3452021 - 2² = 3452017 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 (3452081) 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, 71 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (864000).

Almost surely, 2^3452021 is an apocalyptic number.

It is an amenable number.

3452021 is a deficient number, since it is larger than the sum of its proper divisors (3979).

3452021 is a wasteful number, since it uses less digits than its factorization.

3452021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3452021 is about 1857.9615173625. The cubic root of 3452021 is about 151.1324802576.

Adding to 3452021 its reverse (1202543), we get a palindrome (4654564).

The spelling of 3452021 in words is "three million, four hundred fifty-two thousand, twenty-one".