2050639 has 2 divisors, whose sum is σ = 2050640. Its totient is φ = 2050638.

The previous prime is 2050621. The next prime is 2050679. The reversal of 2050639 is 9360502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2050639 - 2⁷ = 2050511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025319 + 1025320.

It is an arithmetic number, because the mean of its divisors is an integer number (1025320).

2^2050639 is an apocalyptic number.

2050639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050639 is an equidigital number, since it uses as much as digits as its factorization.

2050639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2050639 is about 1432.0052374206. The cubic root of 2050639 is about 127.0466069871.

The spelling of 2050639 in words is "two million, fifty thousand, six hundred thirty-nine".