47838831 has 8 divisors (see below), whose sum is σ = 63950640. Its totient is φ = 31809792.

The previous prime is 47838829. The next prime is 47838839. The reversal of 47838831 is 13883874.

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

It is not a de Polignac number, because 47838831 - 2¹ = 47838829 is a prime.

It is a super-2 number, since 2×47838831² = 4577107502893122, which contains 22 as substring.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19330 + ... + 21663.

It is an arithmetic number, because the mean of its divisors is an integer number (7993830).

Almost surely, 2^47838831 is an apocalyptic number.

47838831 is a deficient number, since it is larger than the sum of its proper divisors (16111809).

47838831 is a wasteful number, since it uses less digits than its factorization.

47838831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41385.

The product of its digits is 129024, while the sum is 42.

The square root of 47838831 is about 6916.5620795306. The cubic root of 47838831 is about 363.0169075900.

The spelling of 47838831 in words is "forty-seven million, eight hundred thirty-eight thousand, eight hundred thirty-one".