3820365 has 20 divisors (see below), whose sum is σ = 6849084. Its totient is φ = 2037312.

The previous prime is 3820363. The next prime is 3820379. The reversal of 3820365 is 5630283.

It can be written as a sum of positive squares in 2 ways, for example, as 2022084 + 1798281 = 1422^2 + 1341^2 .

It is not a de Polignac number, because 3820365 - 2¹ = 3820363 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

3820365 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820363) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4312 + ... + 5121.

Almost surely, 2^3820365 is an apocalyptic number.

It is an amenable number.

3820365 is a deficient number, since it is larger than the sum of its proper divisors (3028719).

3820365 is an equidigital number, since it uses as much as digits as its factorization.

3820365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450 (or 9441 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3820365 is about 1954.5754014619. The cubic root of 3820365 is about 156.3273451738.

The spelling of 3820365 in words is "three million, eight hundred twenty thousand, three hundred sixty-five".