3894861 has 8 divisors (see below), whose sum is σ = 5222880. Its totient is φ = 2581712.

The previous prime is 3894859. The next prime is 3894881. The reversal of 3894861 is 1684983.

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

It is a cyclic number.

It is not a de Polignac number, because 3894861 - 2¹ = 3894859 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8⁵ + 9⁶ + 4¹⁰ + 8⁷ + 6⁵ + 1 .

3894861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3090 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (652860).

Almost surely, 2^3894861 is an apocalyptic number.

It is an amenable number.

3894861 is a deficient number, since it is larger than the sum of its proper divisors (1328019).

3894861 is a wasteful number, since it uses less digits than its factorization.

3894861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7435.

The product of its digits is 41472, while the sum is 39.

The square root of 3894861 is about 1973.5402200107. The cubic root of 3894861 is about 157.3369236748.

The spelling of 3894861 in words is "three million, eight hundred ninety-four thousand, eight hundred sixty-one".