3820691 has 16 divisors (see below), whose sum is σ = 4800000. Its totient is φ = 2965248.

The previous prime is 3820673. The next prime is 3820709. The reversal of 3820691 is 1960283.

3820691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3820673) and next prime (3820709).

It is a cyclic number.

It is not a de Polignac number, because 3820691 - 2⁶ = 3820627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820651) 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 15 ways as a sum of consecutive naturals, for example, 2435 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (300000).

Almost surely, 2^3820691 is an apocalyptic number.

3820691 is a deficient number, since it is larger than the sum of its proper divisors (979309).

3820691 is a wasteful number, since it uses less digits than its factorization.

3820691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 3820691 is about 1954.6587937540. The cubic root of 3820691 is about 156.3317916307.

Adding to 3820691 its product of nonzero digits (2592), we get a palindrome (3823283).

The spelling of 3820691 in words is "three million, eight hundred twenty thousand, six hundred ninety-one".