49107729 has 12 divisors (see below), whose sum is σ = 71971088. Its totient is φ = 29762040.

The previous prime is 49107719. The next prime is 49107739. The reversal of 49107729 is 92770194.

49107729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49107719) and next prime (49107739).

It is not a de Polignac number, because 49107729 - 2⁷ = 49107601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49107719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67279 + ... + 68004.

Almost surely, 2^49107729 is an apocalyptic number.

It is an amenable number.

49107729 is a deficient number, since it is larger than the sum of its proper divisors (22863359).

49107729 is a wasteful number, since it uses less digits than its factorization.

49107729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135308 (or 135297 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 49107729 is about 7007.6907037911. The cubic root of 49107729 is about 366.1985470552.

The spelling of 49107729 in words is "forty-nine million, one hundred seven thousand, seven hundred twenty-nine".