47772216 has 48 divisors (see below), whose sum is σ = 132546960. Its totient is φ = 15534720.

The previous prime is 47772191. The next prime is 47772233. The reversal of 47772216 is 61227774.

It is a happy number.

47772216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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, 5140 + ... + 11043.

It is an arithmetic number, because the mean of its divisors is an integer number (2761395).

Almost surely, 2^47772216 is an apocalyptic number.

It is an amenable number.

47772216 is an abundant number, since it is smaller than the sum of its proper divisors (84774744).

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

47772216 is a wasteful number, since it uses less digits than its factorization.

47772216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16236 (or 16229 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 47772216 is about 6911.7447869550. The cubic root of 47772216 is about 362.8483304179.

The spelling of 47772216 in words is "forty-seven million, seven hundred seventy-two thousand, two hundred sixteen".