2806201421 has 2 divisors, whose sum is σ = 2806201422. Its totient is φ = 2806201420.

The previous prime is 2806201399. The next prime is 2806201469. The reversal of 2806201421 is 1241026082.

It is a happy number.

2806201421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1884775396 + 921426025 = 43414^2 + 30355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806201421 - 2¹⁴ = 2806185037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2806201121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403100710 + 1403100711.

It is an arithmetic number, because the mean of its divisors is an integer number (1403100711).

Almost surely, 2^2806201421 is an apocalyptic number.

It is an amenable number.

2806201421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806201421 is an equidigital number, since it uses as much as digits as its factorization.

2806201421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2806201421 is about 52973.5917321074. The cubic root of 2806201421 is about 1410.4995331136.

The spelling of 2806201421 in words is "two billion, eight hundred six million, two hundred one thousand, four hundred twenty-one".