3894109 has 4 divisors (see below), whose sum is σ = 3899104. Its totient is φ = 3889116.

The previous prime is 3894103. The next prime is 3894113. The reversal of 3894109 is 9014983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3894109 - 2³ = 3894101 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894101) 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, 1047 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (974776).

Almost surely, 2^3894109 is an apocalyptic number.

It is an amenable number.

3894109 is a deficient number, since it is larger than the sum of its proper divisors (4995).

3894109 is an equidigital number, since it uses as much as digits as its factorization.

3894109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3894109 is about 1973.3496902475. The cubic root of 3894109 is about 157.3267970847.

The spelling of 3894109 in words is "three million, eight hundred ninety-four thousand, one hundred nine".