3894571 has 2 divisors, whose sum is σ = 3894572. Its totient is φ = 3894570.

The previous prime is 3894557. The next prime is 3894587. The reversal of 3894571 is 1754983.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3894571 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3894571.

It is not a weakly prime, because it can be changed into another prime (3894511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1947285 + 1947286.

It is an arithmetic number, because the mean of its divisors is an integer number (1947286).

Almost surely, 2^3894571 is an apocalyptic number.

3894571 is a deficient number, since it is larger than the sum of its proper divisors (1).

3894571 is an equidigital number, since it uses as much as digits as its factorization.

3894571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 3894571 is about 1973.4667466162. The cubic root of 3894571 is about 157.3330186283. Note that the first 3 decimals are identical.

It can be divided in two parts, 3894 and 571, that added together give a triangular number (4465 = T₉₄).

The spelling of 3894571 in words is "three million, eight hundred ninety-four thousand, five hundred seventy-one".