47143936 has 44 divisors (see below), whose sum is σ = 107721328. Its totient is φ = 20201472.

The previous prime is 47143919. The next prime is 47143949. The reversal of 47143936 is 63934174.

It is a junction number, because it is equal to n+sod(n) for n = 47143895 and 47143904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3880 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (2448212).

Almost surely, 2^47143936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47143936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53860664).

47143936 is an abundant number, since it is smaller than the sum of its proper divisors (60577392).

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

47143936 is an equidigital number, since it uses as much as digits as its factorization.

47143936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604 (or 6586 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 47143936 is about 6866.1441872422. The cubic root of 47143936 is about 361.2506297407.

The spelling of 47143936 in words is "forty-seven million, one hundred forty-three thousand, nine hundred thirty-six".