47897216 has 32 divisors (see below), whose sum is σ = 96323700. Its totient is φ = 23721984.

The previous prime is 47897209. The next prime is 47897221. The reversal of 47897216 is 61279874.

It can be written as a sum of positive squares in 2 ways, for example, as 47886400 + 10816 = 6920^2 + 104^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12236 + ... + 15668.

Almost surely, 2^47897216 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 47897216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48161850).

47897216 is an abundant number, since it is smaller than the sum of its proper divisors (48426484).

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

47897216 is a wasteful number, since it uses less digits than its factorization.

47897216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556 (or 3544 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 47897216 is about 6920.7814587661. The cubic root of 47897216 is about 363.1645291293.

The spelling of 47897216 in words is "forty-seven million, eight hundred ninety-seven thousand, two hundred sixteen".