3780843 has 8 divisors (see below), whose sum is σ = 5499456. Its totient is φ = 2291400.

The previous prime is 3780839. The next prime is 3780857. The reversal of 3780843 is 3480873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3780843 - 2² = 3780839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 114571 = 3780843 / (3 + 7 + 8 + 0 + 8 + 4 + 3).

It is an Ulam number.

3780843 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3780823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57253 + ... + 57318.

It is an arithmetic number, because the mean of its divisors is an integer number (687432).

Almost surely, 2^3780843 is an apocalyptic number.

3780843 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3780843 is a deficient number, since it is larger than the sum of its proper divisors (1718613).

3780843 is a wasteful number, since it uses less digits than its factorization.

3780843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114585.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 3780843 is about 1944.4389936432. The cubic root of 3780843 is about 155.7864022808.

The spelling of 3780843 in words is "three million, seven hundred eighty thousand, eight hundred forty-three".