49881947 has 2 divisors, whose sum is σ = 49881948. Its totient is φ = 49881946.

The previous prime is 49881941. The next prime is 49881967. The reversal of 49881947 is 74918894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49881947 - 2¹² = 49877851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49881895 and 49881904.

It is not a weakly prime, because it can be changed into another prime (49881941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24940973 + 24940974.

It is an arithmetic number, because the mean of its divisors is an integer number (24940974).

Almost surely, 2^49881947 is an apocalyptic number.

49881947 is a deficient number, since it is larger than the sum of its proper divisors (1).

49881947 is an equidigital number, since it uses as much as digits as its factorization.

49881947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 50.

The square root of 49881947 is about 7062.7152710555. The cubic root of 49881947 is about 368.1129807282.

The spelling of 49881947 in words is "forty-nine million, eight hundred eighty-one thousand, nine hundred forty-seven".