3820099 has 4 divisors (see below), whose sum is σ = 3943360. Its totient is φ = 3696840.

The previous prime is 3820097. The next prime is 3820109. The reversal of 3820099 is 9900283.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3820099 - 2¹ = 3820097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 123229 = 3820099 / (3 + 8 + 2 + 0 + 0 + 9 + 9).

It is a Duffinian number.

3820099 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3820099.

It is not an unprimeable number, because it can be changed into a prime (3820097) 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, 61584 + ... + 61645.

It is an arithmetic number, because the mean of its divisors is an integer number (985840).

Almost surely, 2^3820099 is an apocalyptic number.

3820099 is a deficient number, since it is larger than the sum of its proper divisors (123261).

3820099 is a wasteful number, since it uses less digits than its factorization.

3820099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123260.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 3820099 is about 1954.5073548084. The cubic root of 3820099 is about 156.3237168958.

The spelling of 3820099 in words is "three million, eight hundred twenty thousand, ninety-nine".