3894986 has 4 divisors (see below), whose sum is σ = 5842482. Its totient is φ = 1947492.

The previous prime is 3894977. The next prime is 3894991. The reversal of 3894986 is 6894983.

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., 3129361 + 765625 = 1769^2 + 875^2 .

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 3894986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973745 + ... + 973748.

Almost surely, 2^3894986 is an apocalyptic number.

3894986 is a deficient number, since it is larger than the sum of its proper divisors (1947496).

3894986 is a wasteful number, since it uses less digits than its factorization.

3894986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947495.

The product of its digits is 373248, while the sum is 47.

The square root of 3894986 is about 1973.5718887337. The cubic root of 3894986 is about 157.3386068247.

The spelling of 3894986 in words is "three million, eight hundred ninety-four thousand, nine hundred eighty-six".