3213842 has 4 divisors (see below), whose sum is σ = 4820766. Its totient is φ = 1606920.

The previous prime is 3213839. The next prime is 3213851. The reversal of 3213842 is 2483123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2483123 = 167 ⋅14869.

It can be written as a sum of positive squares in only one way, i.e., 1957201 + 1256641 = 1399^2 + 1121^2 .

It is an Ulam number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 803459 + ... + 803462.

Almost surely, 2^3213842 is an apocalyptic number.

3213842 is a deficient number, since it is larger than the sum of its proper divisors (1606924).

3213842 is a wasteful number, since it uses less digits than its factorization.

3213842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606923.

The product of its digits is 1152, while the sum is 23.

The square root of 3213842 is about 1792.7191637287. The cubic root of 3213842 is about 147.5734308318.

Adding to 3213842 its reverse (2483123), we get a palindrome (5696965).

The spelling of 3213842 in words is "three million, two hundred thirteen thousand, eight hundred forty-two".