49408939 has 2 divisors, whose sum is σ = 49408940. Its totient is φ = 49408938.

The previous prime is 49408907. The next prime is 49408943. The reversal of 49408939 is 93980494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49408939 - 2⁵ = 49408907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49408339) 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, 24704469 + 24704470.

It is an arithmetic number, because the mean of its divisors is an integer number (24704470).

Almost surely, 2^49408939 is an apocalyptic number.

49408939 is a deficient number, since it is larger than the sum of its proper divisors (1).

49408939 is an equidigital number, since it uses as much as digits as its factorization.

49408939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 49408939 is about 7029.1492372833. The cubic root of 49408939 is about 366.9457336479.

The spelling of 49408939 in words is "forty-nine million, four hundred eight thousand, nine hundred thirty-nine".