47121336 has 48 divisors (see below), whose sum is σ = 128319360. Its totient is φ = 15621120.

The previous prime is 47121329. The next prime is 47121337. The reversal of 47121336 is 63312174.

47121336 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 not an unprimeable number, because it can be changed into a prime (47121337) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12201 + ... + 15591.

It is an arithmetic number, because the mean of its divisors is an integer number (2673320).

Almost surely, 2^47121336 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 47121336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64159680).

47121336 is an abundant number, since it is smaller than the sum of its proper divisors (81198024).

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

47121336 is a wasteful number, since it uses less digits than its factorization.

47121336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 3589 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 47121336 is about 6864.4982336657. The cubic root of 47121336 is about 361.1928947142.

The spelling of 47121336 in words is "forty-seven million, one hundred twenty-one thousand, three hundred thirty-six".