3892145 has 12 divisors (see below), whose sum is σ = 4793076. Its totient is φ = 3034080.

The previous prime is 3892123. The next prime is 3892151. The reversal of 3892145 is 5412983.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 3418801 = 688^2 + 1849^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3892145 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

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, 9035 + ... + 9455.

It is an arithmetic number, because the mean of its divisors is an integer number (399423).

Almost surely, 2^3892145 is an apocalyptic number.

It is an amenable number.

3892145 is a deficient number, since it is larger than the sum of its proper divisors (900931).

3892145 is an equidigital number, since it uses as much as digits as its factorization.

3892145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 469 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 3892145 is about 1972.8519964762. The cubic root of 3892145 is about 157.3003432977.

The spelling of 3892145 in words is "three million, eight hundred ninety-two thousand, one hundred forty-five".