3894538 has 4 divisors (see below), whose sum is σ = 5841810. Its totient is φ = 1947268.

The previous prime is 3894529. The next prime is 3894557. The reversal of 3894538 is 8354983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2601769 + 1292769 = 1613^2 + 1137^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3894538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973633 + ... + 973636.

Almost surely, 2^3894538 is an apocalyptic number.

3894538 is a deficient number, since it is larger than the sum of its proper divisors (1947272).

3894538 is a wasteful number, since it uses less digits than its factorization.

3894538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947271.

The product of its digits is 103680, while the sum is 40.

The square root of 3894538 is about 1973.4583856773. The cubic root of 3894538 is about 157.3325742486.

It can be divided in two parts, 38945 and 38, that added together give a palindrome (38983).

The spelling of 3894538 in words is "three million, eight hundred ninety-four thousand, five hundred thirty-eight".