3789145 has 4 divisors (see below), whose sum is σ = 4546980. Its totient is φ = 3031312.

The previous prime is 3789143. The next prime is 3789173. The reversal of 3789145 is 5419873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5419873 = 257 ⋅21089.

It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 1125721 = 1632^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 3789145 - 2¹ = 3789143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3789143) 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, 378910 + ... + 378919.

It is an arithmetic number, because the mean of its divisors is an integer number (1136745).

Almost surely, 2^3789145 is an apocalyptic number.

It is an amenable number.

3789145 is a deficient number, since it is larger than the sum of its proper divisors (757835).

3789145 is an equidigital number, since it uses as much as digits as its factorization.

3789145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757834.

The product of its digits is 30240, while the sum is 37.

The square root of 3789145 is about 1946.5726290072. The cubic root of 3789145 is about 155.9003445264.

The spelling of 3789145 in words is "three million, seven hundred eighty-nine thousand, one hundred forty-five".