3820393 has 4 divisors (see below), whose sum is σ = 4045140. Its totient is φ = 3595648.

The previous prime is 3820391. The next prime is 3820423. The reversal of 3820393 is 3930283.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2679769 + 1140624 = 1637^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 3820393 - 2¹ = 3820391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112348 + ... + 112381.

It is an arithmetic number, because the mean of its divisors is an integer number (1011285).

Almost surely, 2^3820393 is an apocalyptic number.

It is an amenable number.

3820393 is a deficient number, since it is larger than the sum of its proper divisors (224747).

3820393 is a wasteful number, since it uses less digits than its factorization.

3820393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224746.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3820393 is about 1954.5825641297. The cubic root of 3820393 is about 156.3277270880.

The spelling of 3820393 in words is "three million, eight hundred twenty thousand, three hundred ninety-three".