3981322 has 4 divisors (see below), whose sum is σ = 5971986. Its totient is φ = 1990660.

The previous prime is 3981301. The next prime is 3981331. The reversal of 3981322 is 2231893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2231893 = 269 ⋅8297.

It can be written as a sum of positive squares in only one way, i.e., 3837681 + 143641 = 1959^2 + 379^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995329 + ... + 995332.

Almost surely, 2^3981322 is an apocalyptic number.

3981322 is a deficient number, since it is larger than the sum of its proper divisors (1990664).

3981322 is a wasteful number, since it uses less digits than its factorization.

3981322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990663.

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

The square root of 3981322 is about 1995.3250361783. The cubic root of 3981322 is about 158.4926406439.

The spelling of 3981322 in words is "three million, nine hundred eighty-one thousand, three hundred twenty-two".