3251866 has 4 divisors (see below), whose sum is σ = 4877802. Its totient is φ = 1625932.

The previous prime is 3251863. The next prime is 3251873. The reversal of 3251866 is 6681523.

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., 3164841 + 87025 = 1779^2 + 295^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3251861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812965 + ... + 812968.

Almost surely, 2^3251866 is an apocalyptic number.

3251866 is a deficient number, since it is larger than the sum of its proper divisors (1625936).

3251866 is a wasteful number, since it uses less digits than its factorization.

3251866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625935.

The product of its digits is 8640, while the sum is 31.

The square root of 3251866 is about 1803.2930987502. The cubic root of 3251866 is about 148.1531468051.

The spelling of 3251866 in words is "three million, two hundred fifty-one thousand, eight hundred sixty-six".