47165312 has 32 divisors (see below), whose sum is σ = 94600920. Its totient is φ = 23422464.

The previous prime is 47165297. The next prime is 47165317. The reversal of 47165312 is 21356174.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47165317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18923 + ... + 21269.

Almost surely, 2^47165312 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 47165312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47300460).

47165312 is an abundant number, since it is smaller than the sum of its proper divisors (47435608).

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

47165312 is a wasteful number, since it uses less digits than its factorization.

47165312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518 (or 2506 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 47165312 is about 6867.7006341278. The cubic root of 47165312 is about 361.3052209020.

The spelling of 47165312 in words is "forty-seven million, one hundred sixty-five thousand, three hundred twelve".