49649947 has 2 divisors, whose sum is σ = 49649948. Its totient is φ = 49649946.

The previous prime is 49649933. The next prime is 49649969. The reversal of 49649947 is 74994694.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49649947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49649894 and 49649903.

It is not a weakly prime, because it can be changed into another prime (49649927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24824973 + 24824974.

It is an arithmetic number, because the mean of its divisors is an integer number (24824974).

Almost surely, 2^49649947 is an apocalyptic number.

49649947 is a deficient number, since it is larger than the sum of its proper divisors (1).

49649947 is an equidigital number, since it uses as much as digits as its factorization.

49649947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 49649947 is about 7046.2718511281. The cubic root of 49649947 is about 367.5413981470.

The spelling of 49649947 in words is "forty-nine million, six hundred forty-nine thousand, nine hundred forty-seven".