3780331 has 4 divisors (see below), whose sum is σ = 3851712. Its totient is φ = 3708952.

The previous prime is 3780319. The next prime is 3780367. The reversal of 3780331 is 1330873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3780331 - 2⁹ = 3779819 is a prime.

It is a super-2 number, since 2×3780331² = 28581804939122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3780296 and 3780305.

It is not an unprimeable number, because it can be changed into a prime (3780391) 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, 35611 + ... + 35716.

It is an arithmetic number, because the mean of its divisors is an integer number (962928).

Almost surely, 2^3780331 is an apocalyptic number.

3780331 is a deficient number, since it is larger than the sum of its proper divisors (71381).

3780331 is an equidigital number, since it uses as much as digits as its factorization.

3780331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71380.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3780331 is about 1944.3073316737. The cubic root of 3780331 is about 155.7793697894.

The spelling of 3780331 in words is "three million, seven hundred eighty thousand, three hundred thirty-one".