3780872 has 16 divisors (see below), whose sum is σ = 7117740. Its totient is φ = 1882816.

The previous prime is 3780871. The next prime is 3780893. The reversal of 3780872 is 2780873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3363556 + 417316 = 1834^2 + 646^2 .

It is not an unprimeable number, because it can be changed into a prime (3780871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538 + ... + 3150.

Almost surely, 2^3780872 is an apocalyptic number.

It is an amenable number.

3780872 is a deficient number, since it is larger than the sum of its proper divisors (3336868).

3780872 is a wasteful number, since it uses less digits than its factorization.

3780872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 3780872 is about 1944.4464507926. The cubic root of 3780872 is about 155.7868005866.

Subtracting from 3780872 its reverse (2780873), we obtain a palindrome (999999).

The spelling of 3780872 in words is "three million, seven hundred eighty thousand, eight hundred seventy-two".