3291872 has 12 divisors (see below), whose sum is σ = 6480936. Its totient is φ = 1645920.

The previous prime is 3291839. The next prime is 3291881. The reversal of 3291872 is 2781923.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 102871 = 3291872 / (3 + 2 + 9 + 1 + 8 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51404 + ... + 51467.

It is an arithmetic number, because the mean of its divisors is an integer number (540078).

Almost surely, 2^3291872 is an apocalyptic number.

3291872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3291872 is a deficient number, since it is larger than the sum of its proper divisors (3189064).

3291872 is a wasteful number, since it uses less digits than its factorization.

3291872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102881 (or 102873 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 3291872 is about 1814.3516748415. The cubic root of 3291872 is about 148.7582223640.

The spelling of 3291872 in words is "three million, two hundred ninety-one thousand, eight hundred seventy-two".