3845399 has 4 divisors (see below), whose sum is σ = 3927264. Its totient is φ = 3763536.

The previous prime is 3845389. The next prime is 3845407. The reversal of 3845399 is 9935483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9935483 = 103 ⋅96461.

It is a cyclic number.

It is not a de Polignac number, because 3845399 - 2⁸ = 3845143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845329) 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, 40862 + ... + 40955.

It is an arithmetic number, because the mean of its divisors is an integer number (981816).

Almost surely, 2^3845399 is an apocalyptic number.

3845399 is a deficient number, since it is larger than the sum of its proper divisors (81865).

3845399 is an equidigital number, since it uses as much as digits as its factorization.

3845399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81864.

The product of its digits is 116640, while the sum is 41.

The square root of 3845399 is about 1960.9688931750. The cubic root of 3845399 is about 156.6680614533.

The spelling of 3845399 in words is "three million, eight hundred forty-five thousand, three hundred ninety-nine".