49940447 has 2 divisors, whose sum is σ = 49940448. Its totient is φ = 49940446.

The previous prime is 49940437. The next prime is 49940459. The reversal of 49940447 is 74404994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49940447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49940437) 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, 24970223 + 24970224.

It is an arithmetic number, because the mean of its divisors is an integer number (24970224).

Almost surely, 2^49940447 is an apocalyptic number.

49940447 is a deficient number, since it is larger than the sum of its proper divisors (1).

49940447 is an equidigital number, since it uses as much as digits as its factorization.

49940447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 49940447 is about 7066.8555242059. The cubic root of 49940447 is about 368.2568283375.

The spelling of 49940447 in words is "forty-nine million, nine hundred forty thousand, four hundred forty-seven".