2852385821 has 8 divisors (see below), whose sum is σ = 2875872600. Its totient is φ = 2828957248.

The previous prime is 2852385791. The next prime is 2852385827. The reversal of 2852385821 is 1285832582.

It can be written as a sum of positive squares in 4 ways, for example, as 575760025 + 2276625796 = 23995^2 + 47714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2852385821 is a prime.

It is a super-2 number, since 2×2852385821² = 16272209743683688082, 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 (2852385827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86735 + ... + 115011.

It is an arithmetic number, because the mean of its divisors is an integer number (359484075).

Almost surely, 2^2852385821 is an apocalyptic number.

It is an amenable number.

2852385821 is a deficient number, since it is larger than the sum of its proper divisors (23486779).

2852385821 is a wasteful number, since it uses less digits than its factorization.

2852385821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29103.

The product of its digits is 307200, while the sum is 44.

The square root of 2852385821 is about 53407.7318466156. The cubic root of 2852385821 is about 1418.1954563756.

The spelling of 2852385821 in words is "two billion, eight hundred fifty-two million, three hundred eighty-five thousand, eight hundred twenty-one".