3272421 has 4 divisors (see below), whose sum is σ = 4363232. Its totient is φ = 2181612.

The previous prime is 3272419. The next prime is 3272431. The reversal of 3272421 is 1242723.

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: 1242723 = 3 ⋅414241.

It is not a de Polignac number, because 3272421 - 2¹ = 3272419 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

3272421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3272431) 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, 545401 + ... + 545406.

It is an arithmetic number, because the mean of its divisors is an integer number (1090808).

Almost surely, 2^3272421 is an apocalyptic number.

It is an amenable number.

3272421 is a deficient number, since it is larger than the sum of its proper divisors (1090811).

3272421 is a wasteful number, since it uses less digits than its factorization.

3272421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090810.

The product of its digits is 672, while the sum is 21.

The square root of 3272421 is about 1808.9834161761. The cubic root of 3272421 is about 148.4646493868.

The spelling of 3272421 in words is "three million, two hundred seventy-two thousand, four hundred twenty-one".