3431866 has 8 divisors (see below), whose sum is σ = 5163444. Its totient is φ = 1710720.

The previous prime is 3431851. The next prime is 3431867. The reversal of 3431866 is 6681343.

It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 137641 = 1815^2 + 371^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3431867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725 + ... + 3136.

Almost surely, 2^3431866 is an apocalyptic number.

3431866 is a deficient number, since it is larger than the sum of its proper divisors (1731578).

3431866 is a wasteful number, since it uses less digits than its factorization.

3431866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216.

The product of its digits is 10368, while the sum is 31.

The square root of 3431866 is about 1852.5296218954. The cubic root of 3431866 is about 150.8377714745.

It can be divided in two parts, 343 and 1866, that added together give a square (2209 = 47²).

The spelling of 3431866 in words is "three million, four hundred thirty-one thousand, eight hundred sixty-six".