3891332 has 6 divisors (see below), whose sum is σ = 6809838. Its totient is φ = 1945664.

The previous prime is 3891331. The next prime is 3891343. The reversal of 3891332 is 2331983.

It can be written as a sum of positive squares in only one way, i.e., 3511876 + 379456 = 1874^2 + 616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3891295 and 3891304.

It is not an unprimeable number, because it can be changed into a prime (3891331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486413 + ... + 486420.

It is an arithmetic number, because the mean of its divisors is an integer number (1134973).

Almost surely, 2^3891332 is an apocalyptic number.

It is an amenable number.

3891332 is a deficient number, since it is larger than the sum of its proper divisors (2918506).

3891332 is a wasteful number, since it uses less digits than its factorization.

3891332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972837 (or 972835 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 3891332 is about 1972.6459388344. The cubic root of 3891332 is about 157.2893901186.

The spelling of 3891332 in words is "three million, eight hundred ninety-one thousand, three hundred thirty-two".