47618922 has 32 divisors (see below), whose sum is σ = 103981248. Its totient is φ = 14449536.

The previous prime is 47618911. The next prime is 47618927. The reversal of 47618922 is 22981674.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is not an unprimeable number, because it can be changed into a prime (47618927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 9875.

It is an arithmetic number, because the mean of its divisors is an integer number (3249414).

Almost surely, 2^47618922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47618922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51990624).

47618922 is an abundant number, since it is smaller than the sum of its proper divisors (56362326).

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

47618922 is a wasteful number, since it uses less digits than its factorization.

47618922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454.

The product of its digits is 48384, while the sum is 39.

The square root of 47618922 is about 6900.6464914528. The cubic root of 47618922 is about 362.4598056107.

The spelling of 47618922 in words is "forty-seven million, six hundred eighteen thousand, nine hundred twenty-two".