47838830 has 24 divisors (see below), whose sum is σ = 93246552. Its totient is φ = 17662944.

The previous prime is 47838829. The next prime is 47838839. The reversal of 47838830 is 3883874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47838839) 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 11 ways as a sum of consecutive naturals, for example, 12464 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (3885273).

Almost surely, 2^47838830 is an apocalyptic number.

47838830 is a deficient number, since it is larger than the sum of its proper divisors (45407722).

47838830 is a wasteful number, since it uses less digits than its factorization.

47838830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28340 (or 28327 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 47838830 is about 6916.5620072403. The cubic root of 47838830 is about 363.0169050606.

Adding to 47838830 its sum of digits (41), we get a triangular number (47838871 = T₉₇₈₁).

The spelling of 47838830 in words is "forty-seven million, eight hundred thirty-eight thousand, eight hundred thirty".