2038639 has 2 divisors, whose sum is σ = 2038640. Its totient is φ = 2038638.

The previous prime is 2038637. The next prime is 2038661. The reversal of 2038639 is 9368302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2038639 - 2¹ = 2038637 is a prime.

It is a super-3 number, since 3×2038639³ = 25418050562650533357, which contains 333 as substring.

Together with 2038637, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2038639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2038637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019319 + 1019320.

It is an arithmetic number, because the mean of its divisors is an integer number (1019320).

2^2038639 is an apocalyptic number.

2038639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2038639 is an equidigital number, since it uses as much as digits as its factorization.

2038639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2038639 is about 1427.8091609175. The cubic root of 2038639 is about 126.7983034400.

The spelling of 2038639 in words is "two million, thirty-eight thousand, six hundred thirty-nine".