3424921 has 4 divisors (see below), whose sum is σ = 3605200. Its totient is φ = 3244644.

The previous prime is 3424909. The next prime is 3424933. The reversal of 3424921 is 1294243.

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 an emirpimes, since its reverse is a distinct semiprime: 1294243 = 691 ⋅1873.

It is an interprime number because it is at equal distance from previous prime (3424909) and next prime (3424933).

It is a cyclic number.

It is not a de Polignac number, because 3424921 - 2⁹ = 3424409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3424901) 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, 90111 + ... + 90148.

It is an arithmetic number, because the mean of its divisors is an integer number (901300).

Almost surely, 2^3424921 is an apocalyptic number.

It is an amenable number.

3424921 is a deficient number, since it is larger than the sum of its proper divisors (180279).

3424921 is a wasteful number, since it uses less digits than its factorization.

3424921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180278.

The product of its digits is 1728, while the sum is 25.

The square root of 3424921 is about 1850.6542086516. The cubic root of 3424921 is about 150.7359536135.

The spelling of 3424921 in words is "three million, four hundred twenty-four thousand, nine hundred twenty-one".