2000626021 has 2 divisors, whose sum is σ = 2000626022. Its totient is φ = 2000626020.

The previous prime is 2000626007. The next prime is 2000626057. The reversal of 2000626021 is 1206260002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1839208996 + 161417025 = 42886^2 + 12705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000626021 - 2⁵ = 2000625989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2000626021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000626081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000313010 + 1000313011.

It is an arithmetic number, because the mean of its divisors is an integer number (1000313011).

Almost surely, 2^2000626021 is an apocalyptic number.

It is an amenable number.

2000626021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000626021 is an equidigital number, since it uses as much as digits as its factorization.

2000626021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2000626021 is about 44728.3581299381. The cubic root of 2000626021 is about 1260.0524923541.

Adding to 2000626021 its reverse (1206260002), we get a palindrome (3206886023).

The spelling of 2000626021 in words is "two billion, six hundred twenty-six thousand, twenty-one".