3866726 has 4 divisors (see below), whose sum is σ = 5800092. Its totient is φ = 1933362.

The previous prime is 3866719. The next prime is 3866741. The reversal of 3866726 is 6276683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6276683 = 7 ⋅896669.

It is a self number, because there is not a number n which added to its sum of digits gives 3866726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966680 + ... + 966683.

It is an arithmetic number, because the mean of its divisors is an integer number (1450023).

Almost surely, 2^3866726 is an apocalyptic number.

3866726 is a deficient number, since it is larger than the sum of its proper divisors (1933366).

3866726 is a wasteful number, since it uses less digits than its factorization.

3866726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933365.

The product of its digits is 72576, while the sum is 38.

The square root of 3866726 is about 1966.3992473554. The cubic root of 3866726 is about 156.9571603403.

The spelling of 3866726 in words is "three million, eight hundred sixty-six thousand, seven hundred twenty-six".