49785729 has 16 divisors (see below), whose sum is σ = 76032000. Its totient is φ = 28386000.

The previous prime is 49785677. The next prime is 49785733. The reversal of 49785729 is 92758794.

It is not a de Polignac number, because 49785729 - 2⁷ = 49785601 is a prime.

It is a super-2 number, since 2×49785729² = 4957237624122882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49785629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8104 + ... + 12854.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000).

Almost surely, 2^49785729 is an apocalyptic number.

It is an amenable number.

49785729 is a deficient number, since it is larger than the sum of its proper divisors (26246271).

49785729 is a wasteful number, since it uses less digits than its factorization.

49785729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260.

The product of its digits is 1270080, while the sum is 51.

The square root of 49785729 is about 7055.9002969146. The cubic root of 49785729 is about 367.8761422538.

The spelling of 49785729 in words is "forty-nine million, seven hundred eighty-five thousand, seven hundred twenty-nine".