3781275 has 12 divisors (see below), whose sum is σ = 6251832. Its totient is φ = 2016640.

The previous prime is 3781249. The next prime is 3781277. The reversal of 3781275 is 5721873.

It is not a de Polignac number, because 3781275 - 2⁵ = 3781243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3781277) 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 11 ways as a sum of consecutive naturals, for example, 25134 + ... + 25283.

It is an arithmetic number, because the mean of its divisors is an integer number (520986).

Almost surely, 2^3781275 is an apocalyptic number.

3781275 is a deficient number, since it is larger than the sum of its proper divisors (2470557).

3781275 is a wasteful number, since it uses less digits than its factorization.

3781275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50430 (or 50425 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 3781275 is about 1944.5500764958. The cubic root of 3781275 is about 155.7923354517.

It can be divided in two parts, 378 and 1275, that added together give a triangular number (1653 = T₅₇).

The spelling of 3781275 in words is "three million, seven hundred eighty-one thousand, two hundred seventy-five".