3802820061 has 4 divisors (see below), whose sum is σ = 5070426752. Its totient is φ = 2535213372.

The previous prime is 3802820057. The next prime is 3802820071. The reversal of 3802820061 is 1600282083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3802820061 - 2² = 3802820057 is a prime.

It is a super-2 number, since 2×3802820061² = 28922880832688087442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3802820011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633803341 + ... + 633803346.

It is an arithmetic number, because the mean of its divisors is an integer number (1267606688).

Almost surely, 2^3802820061 is an apocalyptic number.

It is an amenable number.

3802820061 is a deficient number, since it is larger than the sum of its proper divisors (1267606691).

3802820061 is a wasteful number, since it uses less digits than its factorization.

3802820061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267606690.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 3802820061 is about 61667.0095026506. The cubic root of 3802820061 is about 1560.8766797380.

The spelling of 3802820061 in words is "three billion, eight hundred two million, eight hundred twenty thousand, sixty-one".