49811729 has 8 divisors (see below), whose sum is σ = 54701760. Its totient is φ = 44982000.

The previous prime is 49811687. The next prime is 49811737. The reversal of 49811729 is 92711894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49811729 - 2¹² = 49807633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49811779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13334 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (6837720).

Almost surely, 2^49811729 is an apocalyptic number.

It is an amenable number.

49811729 is a deficient number, since it is larger than the sum of its proper divisors (4890031).

49811729 is a wasteful number, since it uses less digits than its factorization.

49811729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30151.

The product of its digits is 36288, while the sum is 41.

The square root of 49811729 is about 7057.7424860928. The cubic root of 49811729 is about 367.9401707437.

The spelling of 49811729 in words is "forty-nine million, eight hundred eleven thousand, seven hundred twenty-nine".