3894081 has 4 divisors (see below), whose sum is σ = 5192112. Its totient is φ = 2596052.

The previous prime is 3894053. The next prime is 3894083. The reversal of 3894081 is 1804983.

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 3894081 - 2⁵ = 3894049 is a prime.

It is a super-2 number, since 2×3894081² = 30327733669122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3894083) 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, 649011 + ... + 649016.

It is an arithmetic number, because the mean of its divisors is an integer number (1298028).

Almost surely, 2^3894081 is an apocalyptic number.

It is an amenable number.

3894081 is a deficient number, since it is larger than the sum of its proper divisors (1298031).

3894081 is a wasteful number, since it uses less digits than its factorization.

3894081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298030.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 3894081 is about 1973.3425956990. The cubic root of 3894081 is about 157.3264200057.

The spelling of 3894081 in words is "three million, eight hundred ninety-four thousand, eighty-one".