49438439 has 2 divisors, whose sum is σ = 49438440. Its totient is φ = 49438438.

The previous prime is 49438427. The next prime is 49438471. The reversal of 49438439 is 93483494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49438439 - 2⁴ = 49438423 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49438439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49438139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24719219 + 24719220.

It is an arithmetic number, because the mean of its divisors is an integer number (24719220).

Almost surely, 2^49438439 is an apocalyptic number.

49438439 is a deficient number, since it is larger than the sum of its proper divisors (1).

49438439 is an equidigital number, since it uses as much as digits as its factorization.

49438439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 49438439 is about 7031.2473288884. The cubic root of 49438439 is about 367.0187484080.

The spelling of 49438439 in words is "forty-nine million, four hundred thirty-eight thousand, four hundred thirty-nine".