3249321 has 4 divisors (see below), whose sum is σ = 4332432. Its totient is φ = 2166212.

The previous prime is 3249313. The next prime is 3249331. The reversal of 3249321 is 1239423.

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: 1239423 = 3 ⋅413141.

It is a cyclic number.

It is not a de Polignac number, because 3249321 - 2³ = 3249313 is a prime.

It is a super-2 number, since 2×3249321² = 21116173922082, which contains 22 as substring.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 3249291 and 3249300.

It is not an unprimeable number, because it can be changed into a prime (3249331) 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, 541551 + ... + 541556.

It is an arithmetic number, because the mean of its divisors is an integer number (1083108).

Almost surely, 2^3249321 is an apocalyptic number.

It is an amenable number.

3249321 is a deficient number, since it is larger than the sum of its proper divisors (1083111).

3249321 is a wasteful number, since it uses less digits than its factorization.

3249321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083110.

The product of its digits is 1296, while the sum is 24.

The square root of 3249321 is about 1802.5873071782. The cubic root of 3249321 is about 148.1144871387.

It can be divided in two parts, 3249 and 321, that added together give a triangular number (3570 = T₈₄).

The spelling of 3249321 in words is "three million, two hundred forty-nine thousand, three hundred twenty-one".