47729838 has 16 divisors (see below), whose sum is σ = 102802896. Its totient is φ = 14686080.

The previous prime is 47729819. The next prime is 47729861. The reversal of 47729838 is 83892774.

47729838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 305883 + ... + 306038.

It is an arithmetic number, because the mean of its divisors is an integer number (6425181).

Almost surely, 2^47729838 is an apocalyptic number.

47729838 is an abundant number, since it is smaller than the sum of its proper divisors (55073058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47729838 is a wasteful number, since it uses less digits than its factorization.

47729838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611939.

The product of its digits is 677376, while the sum is 48.

The square root of 47729838 is about 6908.6784553922. The cubic root of 47729838 is about 362.7410062805.

The spelling of 47729838 in words is "forty-seven million, seven hundred twenty-nine thousand, eight hundred thirty-eight".