3766321 has 4 divisors (see below), whose sum is σ = 4056052. Its totient is φ = 3476592.

The previous prime is 3766307. The next prime is 3766331. The reversal of 3766321 is 1236673.

3766321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1236673 = 463 ⋅2671.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 3381921 = 620^2 + 1839^2 .

It is a cyclic number.

It is not a de Polignac number, because 3766321 - 2¹¹ = 3764273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3766321.

It is not an unprimeable number, because it can be changed into a prime (3766331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144846 + ... + 144871.

It is an arithmetic number, because the mean of its divisors is an integer number (1014013).

Almost surely, 2^3766321 is an apocalyptic number.

It is an amenable number.

3766321 is a deficient number, since it is larger than the sum of its proper divisors (289731).

3766321 is a wasteful number, since it uses less digits than its factorization.

3766321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289730.

The product of its digits is 4536, while the sum is 28.

The square root of 3766321 is about 1940.7011619515. The cubic root of 3766321 is about 155.5866908387.

The spelling of 3766321 in words is "three million, seven hundred sixty-six thousand, three hundred twenty-one".