47720112 has 40 divisors (see below), whose sum is σ = 134485440. Its totient is φ = 14460480.

The previous prime is 47720111. The next prime is 47720131. The reversal of 47720112 is 21102774.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (47720111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44662 + ... + 45717.

It is an arithmetic number, because the mean of its divisors is an integer number (3362136).

Almost surely, 2^47720112 is an apocalyptic number.

It is an amenable number.

47720112 is an abundant number, since it is smaller than the sum of its proper divisors (86765328).

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

47720112 is a wasteful number, since it uses less digits than its factorization.

47720112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90401 (or 90395 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 47720112 is about 6907.9745222460. The cubic root of 47720112 is about 362.7163657981.

Adding to 47720112 its reverse (21102774), we get a palindrome (68822886).

The spelling of 47720112 in words is "forty-seven million, seven hundred twenty thousand, one hundred twelve".