47771616 has 48 divisors (see below), whose sum is σ = 127008000. Its totient is φ = 15719808.

The previous prime is 47771611. The next prime is 47771623. The reversal of 47771616 is 61617774.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47771611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4435 + ... + 10733.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^47771616 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 47771616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63504000).

47771616 is an abundant number, since it is smaller than the sum of its proper divisors (79236384).

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

47771616 is a wasteful number, since it uses less digits than its factorization.

47771616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391 (or 6383 counting only the distinct ones).

The product of its digits is 49392, while the sum is 39.

The square root of 47771616 is about 6911.7013824383. The cubic root of 47771616 is about 362.8468113347.

The spelling of 47771616 in words is "forty-seven million, seven hundred seventy-one thousand, six hundred sixteen".