3281923 has 4 divisors (see below), whose sum is σ = 3289000. Its totient is φ = 3274848.

The previous prime is 3281911. The next prime is 3281933. The reversal of 3281923 is 3291823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3281923 is a prime.

It is a Duffinian number.

3281923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3281891 and 3281900.

It is not an unprimeable number, because it can be changed into a prime (3281933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2790 + ... + 3787.

It is an arithmetic number, because the mean of its divisors is an integer number (822250).

Almost surely, 2^3281923 is an apocalyptic number.

3281923 is a deficient number, since it is larger than the sum of its proper divisors (7077).

3281923 is an equidigital number, since it uses as much as digits as its factorization.

3281923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076.

The product of its digits is 2592, while the sum is 28.

The square root of 3281923 is about 1811.6078493979. The cubic root of 3281923 is about 148.6082075137.

The spelling of 3281923 in words is "three million, two hundred eighty-one thousand, nine hundred twenty-three".