2850039821 has 2 divisors, whose sum is σ = 2850039822. Its totient is φ = 2850039820.

The previous prime is 2850039763. The next prime is 2850039833. The reversal of 2850039821 is 1289300582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1813908100 + 1036131721 = 42590^2 + 32189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2850039821 - 2¹⁴ = 2850023437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2810039821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425019910 + 1425019911.

It is an arithmetic number, because the mean of its divisors is an integer number (1425019911).

Almost surely, 2^2850039821 is an apocalyptic number.

It is an amenable number.

2850039821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2850039821 is an equidigital number, since it uses as much as digits as its factorization.

2850039821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2850039821 is about 53385.7642166898. The cubic root of 2850039821 is about 1417.8065422865.

The spelling of 2850039821 in words is "two billion, eight hundred fifty million, thirty-nine thousand, eight hundred twenty-one".