3894427 has 4 divisors (see below), whose sum is σ = 3913096. Its totient is φ = 3875760.

The previous prime is 3894419. The next prime is 3894431. The reversal of 3894427 is 7244983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7244983 = 29 ⋅249827.

It is a cyclic number.

It is not a de Polignac number, because 3894427 - 2³ = 3894419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3894227) 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, 9018 + ... + 9439.

It is an arithmetic number, because the mean of its divisors is an integer number (978274).

Almost surely, 2^3894427 is an apocalyptic number.

3894427 is a deficient number, since it is larger than the sum of its proper divisors (18669).

3894427 is a wasteful number, since it uses less digits than its factorization.

3894427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18668.

The product of its digits is 48384, while the sum is 37.

The square root of 3894427 is about 1973.4302622591. The cubic root of 3894427 is about 157.3310794987.

The spelling of 3894427 in words is "three million, eight hundred ninety-four thousand, four hundred twenty-seven".