3894845 has 8 divisors (see below), whose sum is σ = 4835160. Its totient is φ = 3008320.

The previous prime is 3894833. The next prime is 3894857. The reversal of 3894845 is 5484983.

It is an interprime number because it is at equal distance from previous prime (3894833) and next prime (3894857).

It can be written as a sum of positive squares in 4 ways, for example, as 2116 + 3892729 = 46^2 + 1973^2 .

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

It is not a de Polignac number, because 3894845 - 2⁸ = 3894589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13286 + ... + 13575.

It is an arithmetic number, because the mean of its divisors is an integer number (604395).

Almost surely, 2^3894845 is an apocalyptic number.

It is an amenable number.

3894845 is a deficient number, since it is larger than the sum of its proper divisors (940315).

3894845 is a wasteful number, since it uses less digits than its factorization.

3894845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26895.

The product of its digits is 138240, while the sum is 41.

The square root of 3894845 is about 1973.5361663775. The cubic root of 3894845 is about 157.3367082290.

The spelling of 3894845 in words is "three million, eight hundred ninety-four thousand, eight hundred forty-five".