2007941821 has 2 divisors, whose sum is σ = 2007941822. Its totient is φ = 2007941820.

The previous prime is 2007941809. The next prime is 2007941833. The reversal of 2007941821 is 1281497002.

2007941821 = 31685² + 31686².

It is a balanced prime because it is at equal distance from previous prime (2007941809) and next prime (2007941833).

It can be written as a sum of positive squares in only one way, i.e., 1004002596 + 1003939225 = 31686^2 + 31685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2007941821 - 2²⁷ = 1873724093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2007941851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003970910 + 1003970911.

It is an arithmetic number, because the mean of its divisors is an integer number (1003970911).

Almost surely, 2^2007941821 is an apocalyptic number.

2007941821 is the 31686-th centered square number.

It is an amenable number.

2007941821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2007941821 is an equidigital number, since it uses as much as digits as its factorization.

2007941821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2007941821 is about 44810.0638361518. The cubic root of 2007941821 is about 1261.5865252605.

The spelling of 2007941821 in words is "two billion, seven million, nine hundred forty-one thousand, eight hundred twenty-one".