49728311 has 4 divisors (see below), whose sum is σ = 50241072. Its totient is φ = 49215552.

The previous prime is 49728299. The next prime is 49728313. The reversal of 49728311 is 11382794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49728311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49728313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256235 + ... + 256428.

It is an arithmetic number, because the mean of its divisors is an integer number (12560268).

Almost surely, 2^49728311 is an apocalyptic number.

49728311 is a deficient number, since it is larger than the sum of its proper divisors (512761).

49728311 is an equidigital number, since it uses as much as digits as its factorization.

49728311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512760.

The product of its digits is 12096, while the sum is 35.

The square root of 49728311 is about 7051.8303297796. The cubic root of 49728311 is about 367.7346637065.

The spelling of 49728311 in words is "forty-nine million, seven hundred twenty-eight thousand, three hundred eleven".