2090937421 has 2 divisors, whose sum is σ = 2090937422. Its totient is φ = 2090937420.

The previous prime is 2090937353. The next prime is 2090937473. The reversal of 2090937421 is 1247390902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1074921796 + 1016015625 = 32786^2 + 31875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090937421 - 2¹⁹ = 2090413133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090931421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045468710 + 1045468711.

It is an arithmetic number, because the mean of its divisors is an integer number (1045468711).

Almost surely, 2^2090937421 is an apocalyptic number.

It is an amenable number.

2090937421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090937421 is an equidigital number, since it uses as much as digits as its factorization.

2090937421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2090937421 is about 45726.7691948600. The cubic root of 2090937421 is about 1278.7343896958.

The spelling of 2090937421 in words is "two billion, ninety million, nine hundred thirty-seven thousand, four hundred twenty-one".