47612838 has 128 divisors (see below), whose sum is σ = 126443520. Its totient is φ = 11612160.

The previous prime is 47612837. The next prime is 47612881. The reversal of 47612838 is 83821674.

47612838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47612796 and 47612805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47612837) 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 63 ways as a sum of consecutive naturals, for example, 490806 + ... + 490902.

It is an arithmetic number, because the mean of its divisors is an integer number (987840).

Almost surely, 2^47612838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47612838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63221760).

47612838 is an abundant number, since it is smaller than the sum of its proper divisors (78830682).

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

47612838 is a wasteful number, since it uses less digits than its factorization.

47612838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its digits is 64512, while the sum is 39.

The square root of 47612838 is about 6900.2056491093. The cubic root of 47612838 is about 362.4443684744. Note that the first 3 decimals are identical.

The spelling of 47612838 in words is "forty-seven million, six hundred twelve thousand, eight hundred thirty-eight".